# UnyKorn Genesis402 rail (https://twin.unykorn.org) > Pay-per-call machine endpoints over x402 v2 and MPP. No account, no API key. Read the 402, pay USDC on Base/Polygon/Solana (or USDC on Stellar, for calls priced at exactly $0.25), receive JSON. Operated by UnyKorn LLC (Wyoming). ## Start here - [Check before you pay or trade](https://twin.unykorn.org/check/address): $0.01 per call. POST {"params":{"value":"<0x… or Solana address>"}} (or GET ?value=) and get pass, review or block with coded reasons, each source with its version, and a signed receipt. Screening signal from public data. Not a legal or compliance determination, not KYC, not advice. Absence from a list is not a clearance. ## Paid endpoints - [Check before you pay or trade: pass / review / block for one wallet or contract address (EVM chains, Solana)](https://twin.unykorn.org/check/address): $0.01 per call. Pre-flight address check: pass / review / block for ONE wallet or contract address before you pay it or accept funds from it. A public-data sanctions-list signal (exact match against the wallet addresses named by the US … - [Wallet / token / contract risk snapshot (Base, Polygon) — pre-trade check, machine-readable JSON](https://twin.unykorn.org/risk): $0.25 per call. One structured, timestamped, reproducible risk snapshot of ONE EVM address on Base or Polygon: OFAC SDN digital-currency screening, community scam-address blocklists and the Blockchain Fraud case registry; explorer scam … - [Genesis agent-economy simulation](https://twin.unykorn.org/genesis-sim): $0.25 per call. One deterministic simulation run of an N-agent energy-exchange economy over E epochs, returning the Gini coefficient series, final total energy, a stability verdict, and a SHA-256 commitment over the final state vector. - [Live multi-chain treasury balance read](https://twin.unykorn.org/wallet-ops): $0.25 per call. A live, freshly-queried balance read of the Genesis402 operator treasuries: USDC and native ETH on Base mainnet, XRP and trustline balances on XRPL mainnet, and Stellar account state. Every figure is fetched at request t… - [RWA market readiness lookup](https://twin.unykorn.org/rwa-screen): $0.25 per call. A readiness record for one covered US energy-RWA market: grid operator, instrument type, readiness state, our published score, and an evidence hash. DATA SOURCE IS A CURATED STATIC TABLE of the four markets listed in mar… - [LLM chat completion (qwen2.5:7b on the operator's RTX 5090 Laptop GPU)](https://twin.unykorn.org/llm): $0.003 per call. One chat completion, OpenAI message shape in, up to 1,024 output tokens. The local model (qwen2.5:7b) runs on the operator's own GPU. The response names the provider and model that actually answered and the token counts.… - [Signed receipt (genesis402-receipt-v1)](https://twin.unykorn.org/prove): $0.25 per call. One Ed25519-signed, hash-chained receipt recording that a SHA-256 digest existed at the time of payment: either the rail hashes up to 16 KiB of text you send (OBSERVED) or you send a digest you computed (ATTESTED). The r… - [Multi-chain EVM balance read — native + ERC20, up to 5 chains in ONE call](https://twin.unykorn.org/evm-balance): $0.008 per call. Native and ERC20 balances for ONE address across up to five EVM chains (Ethereum, Base, Polygon, Arbitrum, Optimism) in a single paid call, with up to 10 token contracts per request. Each chain names the RPC endpoint tha… - [EVM contract introspection — is it a contract, is it a proxy, is it a token](https://twin.unykorn.org/evm-contract): $0.005 per call. The check an agent runs before it touches an address: whether there is bytecode at it, the bytecode size and its sha256, proxy detection against both the EIP-1967 and the older zeppelinos implementation slots (with the i… - [EVM transaction + receipt + decoded ERC20 transfers in ONE call](https://twin.unykorn.org/evm-tx): $0.006 per call. One transaction fully resolved: the transaction body, its receipt, success/failed/pending status, block number, live confirmation count against the current chain head, gas used, effective gas price, the fee in native uni… - [XRPL account read — balance, reserve, spendable, trustlines, flags](https://twin.unykorn.org/xrpl-account): $0.008 per call. One XRPL mainnet account resolved from a validated ledger: XRP balance in both XRP and drops, the current reserve requirement, the SPENDABLE balance after reserve, owner count, sequence, every account flag decoded by nam… - [Stellar account read — balances, trustlines, signers, thresholds, flags](https://twin.unykorn.org/stellar-account): $0.008 per call. One Stellar pubnet account from Horizon: every balance including XLM and each trustline with its asset code, issuer, limit, authorization state and clawback flag; the native balance broken out; subentry count; sequence; … - [Solana account read — SOL balance plus every SPL token the owner holds](https://twin.unykorn.org/solana-account): $0.008 per call. One Solana mainnet owner resolved at confirmed commitment: SOL balance in both SOL and lamports, whether the account is funded, and up to 60 non-zero SPL token accounts with mint, token account address, raw amount, decim… - [Canonical digests — sha256, sha512-256 and blake2b of text or canonical JSON](https://twin.unykorn.org/hash): $0.003 per call. Deterministic digests of text (up to 48 KiB) or of any JSON value canonicalized the exact way this rail canonicalizes it: keys sorted at every level, undefined dropped, no whitespace. Returns sha256, sha512-256 and blake… - [Verify a genesis402 signed receipt — signature and hash-chain position](https://twin.unykorn.org/verify-receipt): $0.005 per call. For the party who was HANDED a receipt: checks one genesis402 signed receipt against this rail's published Ed25519 issuer key and reports the verdict (valid / signature_mismatch / unverified / not_found), the receipt's t… - [Examiner dossier: registry record, sanctions name screen and counterparty report in ONE call, sold by The Examiner (agent #96494)](https://twin.unykorn.org/agents/evidence-01/dossier): $0.75 per call (POST, USDC on Base only, paid to The Examiner, ERC-8004 agent #96494, at its own wallet 0x117459d013492eC5fF90387B16764e753C506ec9). Screening signals from public sources. Not a KYC decision, not a finding about any person, not advice. One combined JSON dossier on ONE person or company, run in a single call: a registry lookup (GLEIF LEI records and SE… - [Gatekeeper market snapshot: spot prices, the 24-hour top 5 gainers and losers and market breadth in ONE call, sold by The Gatekeeper (agent #96492)](https://twin.unykorn.org/agents/intake-01/market-snapshot): $0.02 per call (GET, USDC on Base only, paid to The Gatekeeper, ERC-8004 agent #96492, at its own wallet 0x14c8267276346da3dff05162DeB75773288b2af4). USD spot prices for BTC, ETH and SOL plus the next 20 coins of the rail's coin list (or up to 25 tickers you name), each with its 24-hour change and timestamp, plus the top 5 gainers and top 5 losers over 24 hours and th… - [OpenAI-compatible chat completions over x402 (local GPU models, no API key)](https://twin.unykorn.org/v1/chat/completions): $0.005 per call. One chat completion using the standard OpenAI request body (model, messages, max_tokens, temperature) sent at the top level, returned in the standard chat.completion shape. The local model (qwen2.5:7b) runs on the operat… - [OpenAI-compatible text embeddings over x402 (768-dim, up to 32 inputs per call)](https://twin.unykorn.org/v1/embeddings): $0.003 per call. Embedding vectors for up to 32 strings (each up to 8,000 characters) in one paid call, OpenAI embeddings response shape, from nomic-embed-text (768 dimensions) on the operator GPU. For RAG, semantic search, dedup and clu… - [Web page to clean text: title, description, headings, links and readable text from any public URL](https://twin.unykorn.org/web-extract): $0.004 per call. A server-side fetch of ONE public http(s) URL, returned as clean readable text (markdown-style headings), title, meta description, up to 40 headings, up to 50 absolute links, final URL after redirects and a SHA-256 of th… - [Summarize any public web page: summary, key points and named entities as JSON](https://twin.unykorn.org/summarize-url): $0.02 per call. Fetches ONE public URL, extracts its readable text and returns a 3-5 sentence summary, up to 7 key points and up to 10 named entities as JSON, produced by a local model from the page text only, plus the final URL and a S… - [Wallet risk-signals brief: public sanctions-list check + 10-chain scan + activity + summary in ONE call](https://twin.unykorn.org/wallet-brief): $0.03 per call. One composite report on ONE EVM address: a public-data sanctions-list signal (OFAC SDN digital-currency entries), a native-balance and activity scan across 10 EVM chains, recent activity on the chosen chain and an addres… - [Token brief: metadata + price + holder concentration + contract verification + sanctions in ONE call](https://twin.unykorn.org/token-brief): $0.03 per call. One composite report on ONE ERC-20 contract: name/symbol/decimals/supply, current USD price, top-holder concentration, source-verification status and a public-data sanctions-list signal for the contract address. Each par… - [DeFi protocol snapshot: TVL, 1d/7d change, per-chain TVL, category, audits (DefiLlama)](https://twin.unykorn.org/defi/protocol): $0.005 per call. Current TVL, 1-day and 7-day TVL change, TVL split by chain (top 25), category, market cap, audit count and links, website and X handle for ONE DeFi protocol by DefiLlama slug or name. - [Top DeFi protocols by TVL, optionally filtered by chain and category](https://twin.unykorn.org/defi/top-protocols): $0.005 per call. Ranked list of DeFi protocols by TVL (CEX reserves excluded), optionally only TVL on one chain and/or one category (Lending, Dexs, Liquid Staking, Bridge, CDP, Yield, RWA...), with 1d/7d change. - [Find DeFi protocols by name or token symbol (DefiLlama index of 6,000+)](https://twin.unykorn.org/defi/protocol-search): $0.003 per call. Search the DefiLlama protocol index by name, slug or token symbol; returns matches ranked by TVL with slug, category and chains, so you can call /defi/protocol next. - [Blockchains ranked by DeFi TVL with market share](https://twin.unykorn.org/defi/chains): $0.003 per call. Every chain with DeFi TVL, ranked, with TVL in USD, share of total DeFi TVL, native token and chain id. - [Daily TVL history for one chain (up to 2 years)](https://twin.unykorn.org/defi/chain-tvl-history): $0.003 per call. Daily DeFi TVL series for ONE chain for the last N days (default 90, max 730) with the period change. - [Best DeFi yields: filter 15,000+ pools by chain, protocol, token, stablecoin-only, TVL](https://twin.unykorn.org/defi/yields): $0.01 per call. Yield pools from DefiLlama filtered by chain, project, token symbol, stablecoin-only and minimum TVL (default $1M), sorted by APY or TVL. Each pool: base vs reward APY, 30-day mean APY, IL risk, exposure and DefiLlama's … - [Stablecoin market: circulating supply, peg price and depeg for every stablecoin](https://twin.unykorn.org/defi/stablecoins): $0.003 per call. All stablecoins ranked by circulating supply with peg type, mechanism, live price, depeg percentage and chain count, plus total stablecoin market cap. - [One stablecoin: supply by chain, peg price and depeg](https://twin.unykorn.org/defi/stablecoin): $0.003 per call. Circulating supply of ONE stablecoin broken down by chain (top 40), plus peg mechanism, live price and depeg percentage. - [DEX trading volume: 24h/7d by protocol, all chains or one chain](https://twin.unykorn.org/defi/dex-volume): $0.005 per call. Decentralized-exchange volume totals (24h, 7d, 1d change) and the top DEXs by 24h volume, globally or for one chain. - [Protocol fees and revenue: who earns the most (24h/7d), all chains or one chain](https://twin.unykorn.org/defi/fees): $0.005 per call. Fees (or revenue with metric=revenue) generated by protocols over 24h and 7d with totals, ranked, globally or for one chain. - [Batch token prices: up to 25 tokens in one call by CoinGecko id or chain:address](https://twin.unykorn.org/defi/token-prices): $0.003 per call. Current USD prices for up to 25 tokens in one call. Identify tokens as coingecko: (coingecko:bitcoin) or : (base:0x8335...). Each price has its timestamp and confidence; unknown ids are marked unavai… - [Token price history: daily or hourly USD series up to 1 year](https://twin.unykorn.org/defi/token-price-history): $0.003 per call. USD price series for ONE token (coingecko: or :
) over N days (max 365), daily or hourly, with change, high and low. - [Chain DeFi overview in ONE call: TVL + trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain-overview): $0.01 per call. Composite report for ONE chain: TVL with 7d/30d change, top 10 protocols, stablecoin supply on the chain, DEX volume (24h/7d, top 5 DEXs) and fees. Each part is independent and marked unavailable, never zeroed. - [Wikipedia search in any language edition](https://twin.unykorn.org/research/wiki-search): $0.003 per call. Top Wikipedia articles for a query with short description, excerpt and URL, in any language edition (lang=en, de, es, ja...). - [Wikipedia article summary (lead section) by title](https://twin.unykorn.org/research/wiki-summary): $0.003 per call. The lead-section summary of ONE Wikipedia article: title, short description, plain-text extract, URL, last-edited time and thumbnail, flagged if it is a disambiguation page. - [Wikidata entity search (find the Q-id for any person, company, place, thing)](https://twin.unykorn.org/research/wikidata-search): $0.003 per call. Wikidata entities matching a name with Q-id, label and description, so you can call /research/wikidata-entity for structured facts. - [Structured facts about an entity from Wikidata (founders, HQ, CEO, website, ticker, inception...)](https://twin.unykorn.org/research/wikidata-entity): $0.003 per call. Label, description, aliases and a fixed set of common properties (instance of, country, HQ, inception, founders, CEO, website, X handle, employees, exchange, ticker, industry, birth date, population, capital) with refere… - [Hacker News search: stories or comments, by relevance or recency](https://twin.unykorn.org/research/hn-search): $0.003 per call. Search Hacker News stories (or comments) with points, comment count, author, time and links; optional recency filter and sort by date. - [Hacker News front page right now](https://twin.unykorn.org/research/hn-front-page): $0.003 per call. The current Hacker News front-page stories with points, comments and links. - [arXiv paper search: titles, authors, abstracts, PDF links](https://twin.unykorn.org/research/arxiv-search): $0.003 per call. Search arXiv preprints by relevance or newest first; each result has id, title, authors, dates, primary category, abstract (1,500 chars) and PDF link. - [DOI lookup: citation metadata, authors, journal, citations, abstract](https://twin.unykorn.org/research/doi): $0.003 per call. Full citation metadata for ONE DOI from Crossref: title, authors, journal, publisher, date, type, citation count, reference count, license and abstract when deposited. - [Scholarly paper search across 150M+ Crossref records](https://twin.unykorn.org/research/paper-search): $0.003 per call. Search published scholarly works (journals, proceedings, books) with DOI, authors, venue, date and citation count; optional from-year filter. - [OpenAlex scholarly search: works with citations and open-access links](https://twin.unykorn.org/research/openalex-search): $0.003 per call. Search 250M+ scholarly works in OpenAlex with year, venue, authors, citation count and an open-access PDF/URL when available; sort by relevance or citations. - [npm package facts: latest version, license, weekly downloads, deps, types, deprecation](https://twin.unykorn.org/research/npm-package): $0.003 per call. For ONE npm package: latest version, description, license, repository, dependency count, peer deps, engines, whether it ships types, weekly downloads and deprecation notice. - [PyPI package facts: version, license, Python requirement, release date](https://twin.unykorn.org/research/pypi-package): $0.003 per call. For ONE PyPI package: latest version, summary, license, requires_python, author, project URLs, latest release time, release count and dependency count. - [Rust crate facts from crates.io: version, downloads, repo](https://twin.unykorn.org/research/crates-package): $0.003 per call. For ONE Rust crate: latest stable version, description, total and recent downloads, repository, docs, created/updated dates, version count. - [Book search (Open Library): titles, authors, first published, ISBNs](https://twin.unykorn.org/research/book-search): $0.003 per call. Search books by title, author or subject with authors, first publication year, edition count, ISBNs and subjects. - [ISBN lookup: title, publisher, date, pages](https://twin.unykorn.org/research/isbn): $0.003 per call. Bibliographic record for ONE ISBN-10/13: title, subtitle, publishers, publish date, pages and languages. - [SEC EDGAR company profile: CIK, industry, exchanges, fiscal year, latest filings](https://twin.unykorn.org/records/sec-company): $0.003 per call. For ONE US-listed/SEC-registered company by ticker or CIK: legal name, CIK, tickers, exchanges, SIC industry, state of incorporation, fiscal year end, former names and its 10 most recent filings with direct links. - [SEC filings list with direct document links, filterable by form (10-K, 10-Q, 8-K, S-1, 13F...)](https://twin.unykorn.org/records/sec-filings): $0.003 per call. Recent EDGAR filings for ONE company (by ticker or CIK), optionally only one form type, each with filing date, period, accession number and a direct link to the primary document. - [Company financials from SEC XBRL: revenue, net income, assets, liabilities, equity, cash, EPS](https://twin.unykorn.org/records/sec-financials): $0.01 per call. As-reported fundamentals for ONE SEC filer from XBRL companyfacts: latest annual and latest quarterly values for revenue, net income, operating income, total assets, liabilities, equity, cash, operating cash flow and dil… - [Foreign-exchange reference rates (ECB) for 30+ currencies](https://twin.unykorn.org/records/fx-rates): $0.003 per call. Latest ECB reference exchange rates from a base currency (default USD) to all or selected currencies. - [Currency conversion at the ECB reference rate (today or a past date)](https://twin.unykorn.org/records/fx-convert): $0.003 per call. Convert an amount between two currencies at the ECB reference rate for the latest business day or a given date (1999+). - [Exchange-rate history between two dates](https://twin.unykorn.org/records/fx-history): $0.003 per call. Daily ECB reference rates for ONE currency pair between two dates, with change, high and low. - [US Treasury yield curve (1m-30y) with 10y-2y spread and inversion flag](https://twin.unykorn.org/records/treasury-yields): $0.003 per call. The latest official daily US Treasury par yield curve (1-month to 30-year), the 10y-2y spread and whether the curve is inverted at 10y-2y. - [Geocode a place name to coordinates, country, timezone, population](https://twin.unykorn.org/geo/geocode): $0.003 per call. Up to 10 matching places for a name with latitude/longitude, admin region, country, timezone, population and elevation. - [Current weather anywhere: temperature, feels-like, wind, precipitation, conditions](https://twin.unykorn.org/geo/weather-now): $0.003 per call. Current conditions for a place name or coordinates: conditions, temperature, feels-like, humidity, precipitation, cloud cover, wind, gusts and day/night, metric or imperial. - [Daily weather forecast up to 16 days: highs, lows, rain chance, wind, UV, sunrise/sunset](https://twin.unykorn.org/geo/weather-forecast): $0.003 per call. Daily forecast for a place or coordinates for 1-16 days (default 7): conditions, max/min temperature, precipitation and probability, max wind, UV index, sunrise and sunset. - [Air quality now: US AQI with health band, PM2.5, PM10, ozone, NO2, UV](https://twin.unykorn.org/geo/air-quality): $0.003 per call. Current modelled air quality for a place or coordinates: US AQI and band, European AQI, PM2.5, PM10, ozone, NO2, CO and UV index. - [Public holidays for 100+ countries for any year](https://twin.unykorn.org/geo/public-holidays): $0.003 per call. All public holidays for ONE country (ISO-2 code) and year with local and English names and whether each is nationwide. - [Is it a business day? Weekend + public-holiday check with next business day](https://twin.unykorn.org/geo/business-day): $0.003 per call. Whether a date is a business day in ONE country (Sat/Sun weekend plus nationwide public holidays), the reason if not, and the next business day. For settlement dates, SLAs and scheduling agents. - [Country facts: capital, currencies, languages, population, timezones, calling code](https://twin.unykorn.org/geo/country): $0.003 per call. For ONE country by ISO code or name: official name, ISO codes, capital, region, population, area, currencies, languages, timezones, calling code, TLD, driving side and borders. - [Postal/ZIP code lookup: city, state, coordinates (60+ countries)](https://twin.unykorn.org/geo/postal-code): $0.003 per call. Places for ONE postal code in 60+ countries (default US): place name, state and state code, latitude and longitude. - [Recent earthquakes worldwide (USGS): magnitude, place, depth, tsunami flag](https://twin.unykorn.org/geo/earthquakes): $0.003 per call. Earthquakes from the USGS real-time feed for the last hour/day/week/month at a minimum magnitude (significant, 4.5, 2.5, 1.0, all), strongest first. - [Active US weather alerts by state (NWS): warnings, watches, advisories](https://twin.unykorn.org/geo/weather-alerts): $0.003 per call. All active National Weather Service alerts for ONE US state: event, severity, urgency, headline, areas, effective and expiry times. - [VIN decoder (NHTSA): make, model, year, trim, body, engine, fuel, plant](https://twin.unykorn.org/records/vin-decode): $0.003 per call. Decode ONE 17-character VIN with the official NHTSA vPIC database: make, model, model year, trim, body class, vehicle type, drive, fuel, electrification, engine, manufacturer and plant country. - [Vehicle safety recalls (NHTSA) by make, model and year](https://twin.unykorn.org/records/vehicle-recalls): $0.003 per call. All NHTSA recall campaigns for a make/model/year: campaign number, date, component, summary, consequence and remedy. - [FDA drug label: indications, dosage, warnings, boxed warning, contraindications](https://twin.unykorn.org/records/fda-drug-label): $0.003 per call. Official FDA label excerpts for ONE drug by brand or generic name: manufacturer, route, boxed warning, indications, dosage, warnings and contraindications. - [FDA recalls and enforcement reports: food, drugs, devices](https://twin.unykorn.org/records/fda-recalls): $0.003 per call. Latest FDA enforcement reports (recalls) for food, drugs or devices, optionally matching a keyword: classification, status, firm, product, reason and distribution. - [US Federal Register search: rules, proposed rules, notices, executive orders](https://twin.unykorn.org/records/federal-register): $0.003 per call. Search the US Federal Register (newest first) by keyword, optional agency slug and document type (RULE, PRORULE, NOTICE, PRESDOCU): title, agencies, abstract, date, links. - [DNS lookup: A, AAAA, MX, TXT, NS, CNAME, CAA, SOA, SRV via public resolvers](https://twin.unykorn.org/web/dns): $0.003 per call. DNS records for ONE domain from public resolvers (1.1.1.1, 8.8.8.8), default A/AAAA/MX/TXT/NS/CNAME/CAA or the types you choose. - [Email/domain deliverability check: MX, provider, SPF, DMARC policy, disposable flag](https://twin.unykorn.org/web/email-check): $0.003 per call. For an email address or domain: can it receive mail (MX), which provider hosts it, SPF and DMARC records and policy, disposable-domain flag and a 0-5 trust score. DNS-only; no SMTP probe. - [Domain WHOIS/RDAP: registrar, created, expires, age, status, nameservers, DNSSEC](https://twin.unykorn.org/web/whois): $0.003 per call. Registry data for ONE domain via RDAP: registrar, registration and expiry dates, domain age in days, days to expiry, status codes, nameservers and DNSSEC. Useful for phishing and counterparty checks (young domains are a … - [IP address ownership (RDAP): network, organization, country, CIDR](https://twin.unykorn.org/web/ip-whois): $0.003 per call. Who owns ONE IPv4/IPv6 address per its regional registry: network name, range and CIDR, country and organization. - [TLS/SSL certificate check: issuer, expiry, days left, SANs, trust, protocol](https://twin.unykorn.org/web/tls-cert): $0.003 per call. Live TLS handshake to ONE host on 443: whether the chain is trusted, issuer, validity dates, days remaining, SAN list, key size, protocol, cipher and the chain up to 5 certs. - [Website security-headers audit with A-F grade, cookie flags and version leaks](https://twin.unykorn.org/web/headers-audit): $0.003 per call. Fetches ONE URL and grades 7 security headers (HSTS, CSP, frame, nosniff, referrer, permissions, COOP) A-F, lists what is missing, cookie Secure/HttpOnly/SameSite flags and server version leaks, plus all response headers… - [robots.txt parser: rules, sitemaps, AI-crawler blocks, and is-this-path-allowed check](https://twin.unykorn.org/web/robots): $0.003 per call. Fetches and parses a site's robots.txt: user-agent groups, allow/disallow rules, crawl-delay, sitemaps, which AI crawlers (GPTBot, ClaudeBot, CCBot...) are blocked, and optionally whether a given path is allowed for a gi… - [Sitemap reader: list a site's URLs with lastmod (handles sitemap indexes)](https://twin.unykorn.org/web/sitemap): $0.003 per call. Reads ONE sitemap (or /sitemap.xml of a site): up to 1,000 URLs with lastmod; for a sitemap index, lists the child sitemaps and collects URLs from the first 3. - [Page metadata: Open Graph, Twitter card, canonical, feeds, JSON-LD types, language](https://twin.unykorn.org/web/page-meta): $0.003 per call. Fetches ONE URL and returns its title, language, canonical URL, icon, Open Graph / Twitter / article meta tags, RSS/Atom feed links and JSON-LD schema types. For link previews, SEO checks and feed discovery. - [RSS/Atom feed reader: latest items with titles, links, dates, summaries](https://twin.unykorn.org/web/rss): $0.003 per call. Parses ONE RSS or Atom feed: feed title and site, and up to 100 latest items with title, link, publish date, author and a 400-char summary. - [Expand short links and show the full redirect chain](https://twin.unykorn.org/web/unshorten): $0.003 per call. Follows ONE URL's HTTP redirects (up to 3) and returns the final URL, host, status and every hop. Useful for phishing checks on shortened links. - [Classify text into YOUR labels (single or multi-label) with confidence and reason](https://twin.unykorn.org/ai/classify): $0.004 per call. Assigns the text to one (or several, with multi_label) of the labels you supply; output labels are filtered to your list, so nothing outside it is returned. For routing, triage, tagging and moderation queues. - [Extract structured JSON from any text using your field list (invoices, emails, contracts, listings)](https://twin.unykorn.org/ai/extract): $0.006 per call. Pulls the fields you define ({field: description}) out of unstructured text and returns them as JSON with exactly your keys; anything not stated is null, never invented. - [Sentiment analysis with score, emotions and per-aspect sentiment](https://twin.unykorn.org/ai/sentiment): $0.003 per call. Overall sentiment (positive/negative/neutral/mixed), a -1..1 score, up to 4 emotions and up to 5 aspects with their own sentiment. - [Translate text into any major language, preserving names, numbers and formatting](https://twin.unykorn.org/ai/translate): $0.006 per call. Translates up to 8,000 characters into the target language (name or code) and reports the detected source language. - [Keywords, topics and tags from text](https://twin.unykorn.org/ai/keywords): $0.003 per call. Up to 15 keywords (ranked), 5 broad topics and 8 lowercase tags for a text. For indexing, SEO and content tagging. - [Named-entity extraction: people, orgs, places, products, dates, money, tickers](https://twin.unykorn.org/ai/entities): $0.004 per call. Entities that appear in the text grouped as people, organizations, locations, products, dates, money amounts, tickers/tokens and URLs/emails. - [Summarize long text: paragraph, bullets or TL;DR with a word limit](https://twin.unykorn.org/ai/summarize): $0.006 per call. Summarizes up to 24,000 characters as a paragraph, up to 8 bullets or a one-line TL;DR, within your word limit (20-400), plus a short title. - [Rewrite text in a new tone for a given audience without changing facts](https://twin.unykorn.org/ai/rewrite): $0.006 per call. Rewrites up to 8,000 characters in the tone you choose (formal, friendly, concise, persuasive, plain...) and optional audience, keeping every fact. - [Answer a question from a document, with a verified supporting quote](https://twin.unykorn.org/ai/answer): $0.006 per call. Answers ONE question using only the text you send; returns a supporting quote that is checked to appear verbatim in your text, and says when the answer is not in the text. - [Detect the language and script of a text](https://twin.unykorn.org/ai/language-detect): $0.003 per call. Language name, ISO 639-1 code, script and confidence for up to 4,000 characters. - [Natural language to SQL for YOUR schema (Postgres, MySQL, SQLite, BigQuery), read-only flagged](https://twin.unykorn.org/ai/text-to-sql): $0.01 per call. Writes ONE SQL query for your question against the schema (DDL) you send, with an explanation, assumptions and a read_only flag. Uses a local open-weights model; the response names it. - [Generate a regex from a description and TEST it against your examples](https://twin.unykorn.org/ai/regex): $0.005 per call. Writes a regular expression for your description and then actually runs it (JavaScript engine) against your should-match and should-not-match examples, reporting pass/fail per example. - [Explain code: summary, step-by-step, inputs/outputs, visible risks, complexity](https://twin.unykorn.org/ai/code-explain): $0.006 per call. Explains up to 12,000 characters of code: a summary, the steps it performs, inputs/outputs, bugs or security/performance risks visible in the code and complexity. Uses a local open-weights model; the response names it. - [Repair malformed JSON (trailing commas, single quotes, code fences, Python literals)](https://twin.unykorn.org/ai/json-repair): $0.003 per call. Returns the input as valid parsed JSON. Deterministic fixes first (code fences, trailing commas, unquoted keys, single quotes, None/True/False); a local model is only used when those fail. Values are never changed on pur… - [Market snapshot: the major coins with 24h and 7d change in ONE call](https://twin.unykorn.org/price/market-snapshot): $0.004 per call. USD price, 24-hour and 7-day percentage change for the major coins, or for up to 25 CoinGecko ids you name, in one call. Each row has its timestamp and pricing confidence; ids with no live price are marked unavailable. T… - [Bitcoin (BTC) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/bitcoin): $0.003 per call. Live USD price of Bitcoin (BTC) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Ethereum (ETH) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/ethereum): $0.003 per call. Live USD price of Ethereum (ETH) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Tether (USDT) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/tether): $0.003 per call. Live USD price of Tether (USDT) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [BNB (BNB) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/binancecoin): $0.003 per call. Live USD price of BNB (BNB) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Solana (SOL) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/solana): $0.003 per call. Live USD price of Solana (SOL) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [USD Coin (USDC) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/usd-coin): $0.003 per call. Live USD price of USD Coin (USDC) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [XRP (XRP) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/ripple): $0.003 per call. Live USD price of XRP (XRP) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Dogecoin (DOGE) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/dogecoin): $0.003 per call. Live USD price of Dogecoin (DOGE) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [TRON (TRX) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/tron): $0.003 per call. Live USD price of TRON (TRX) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Cardano (ADA) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/cardano): $0.003 per call. Live USD price of Cardano (ADA) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Avalanche (AVAX) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/avalanche-2): $0.003 per call. Live USD price of Avalanche (AVAX) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Chainlink (LINK) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/chainlink): $0.003 per call. Live USD price of Chainlink (LINK) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Shiba Inu (SHIB) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/shiba-inu): $0.003 per call. Live USD price of Shiba Inu (SHIB) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Polkadot (DOT) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/polkadot): $0.003 per call. Live USD price of Polkadot (DOT) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Bitcoin Cash (BCH) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/bitcoin-cash): $0.003 per call. Live USD price of Bitcoin Cash (BCH) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Stellar (XLM) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/stellar): $0.003 per call. Live USD price of Stellar (XLM) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Sui (SUI) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/sui): $0.003 per call. Live USD price of Sui (SUI) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Hedera (HBAR) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/hedera-hashgraph): $0.003 per call. Live USD price of Hedera (HBAR) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Litecoin (LTC) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/litecoin): $0.003 per call. Live USD price of Litecoin (LTC) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Uniswap (UNI) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/uniswap): $0.003 per call. Live USD price of Uniswap (UNI) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [NEAR Protocol (NEAR) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/near): $0.003 per call. Live USD price of NEAR Protocol (NEAR) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Aptos (APT) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/aptos): $0.003 per call. Live USD price of Aptos (APT) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Internet Computer (ICP) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/internet-computer): $0.003 per call. Live USD price of Internet Computer (ICP) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Ethereum Classic (ETC) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/ethereum-classic): $0.003 per call. Live USD price of Ethereum Classic (ETC) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Pepe (PEPE) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/pepe): $0.003 per call. Live USD price of Pepe (PEPE) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Dai (DAI) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/dai): $0.003 per call. Live USD price of Dai (DAI) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Monero (XMR) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/monero): $0.003 per call. Live USD price of Monero (XMR) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Cosmos Hub (ATOM) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/cosmos): $0.003 per call. Live USD price of Cosmos Hub (ATOM) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Filecoin (FIL) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/filecoin): $0.003 per call. Live USD price of Filecoin (FIL) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Arbitrum (ARB) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/arbitrum): $0.003 per call. Live USD price of Arbitrum (ARB) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Optimism (OP) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/optimism): $0.003 per call. Live USD price of Optimism (OP) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Render (RENDER) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/render-token): $0.003 per call. Live USD price of Render (RENDER) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Injective (INJ) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/injective-protocol): $0.003 per call. Live USD price of Injective (INJ) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [The Graph (GRT) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/the-graph): $0.003 per call. Live USD price of The Graph (GRT) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Maker (MKR) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/maker): $0.003 per call. Live USD price of Maker (MKR) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Aave (AAVE) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/aave): $0.003 per call. Live USD price of Aave (AAVE) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Algorand (ALGO) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/algorand): $0.003 per call. Live USD price of Algorand (ALGO) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Sonic (S) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/sonic-3): $0.003 per call. Live USD price of Sonic (S) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Mantle (MNT) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/mantle): $0.003 per call. Live USD price of Mantle (MNT) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Kaspa (KAS) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/kaspa): $0.003 per call. Live USD price of Kaspa (KAS) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [OKB (OKB) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/okb): $0.003 per call. Live USD price of OKB (OKB) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Cronos (CRO) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/crypto-com-chain): $0.003 per call. Live USD price of Cronos (CRO) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [VeChain (VET) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/vechain): $0.003 per call. Live USD price of VeChain (VET) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Stacks (STX) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/blockstack): $0.003 per call. Live USD price of Stacks (STX) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Immutable (IMX) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/immutable-x): $0.003 per call. Live USD price of Immutable (IMX) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Sei (SEI) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/sei-network): $0.003 per call. Live USD price of Sei (SEI) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Celestia (TIA) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/celestia): $0.003 per call. Live USD price of Celestia (TIA) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Lido DAO (LDO) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/lido-dao): $0.003 per call. Live USD price of Lido DAO (LDO) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Ondo (ONDO) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/ondo-finance): $0.003 per call. Live USD price of Ondo (ONDO) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Jupiter (JUP) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/jupiter-exchange-solana): $0.003 per call. Live USD price of Jupiter (JUP) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Ethena (ENA) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/ethena): $0.003 per call. Live USD price of Ethena (ENA) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Pendle (PENDLE) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/pendle): $0.003 per call. Live USD price of Pendle (PENDLE) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Worldcoin (WLD) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/worldcoin-wld): $0.003 per call. Live USD price of Worldcoin (WLD) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Bittensor (TAO) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/bittensor): $0.003 per call. Live USD price of Bittensor (TAO) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Hyperliquid (HYPE) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/hyperliquid): $0.003 per call. Live USD price of Hyperliquid (HYPE) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Ethena USDe (USDe) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/ethena-usde): $0.003 per call. Live USD price of Ethena USDe (USDe) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [PayPal USD (PYUSD) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/paypal-usd): $0.003 per call. Live USD price of PayPal USD (PYUSD) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Bonk (BONK) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/bonk): $0.003 per call. Live USD price of Bonk (BONK) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [dogwifhat (WIF) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/dogwifcoin): $0.003 per call. Live USD price of dogwifhat (WIF) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [FLOKI (FLOKI) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/floki): $0.003 per call. Live USD price of FLOKI (FLOKI) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Curve DAO (CRV) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/curve-dao-token): $0.003 per call. Live USD price of Curve DAO (CRV) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Jito (JTO) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/jito-governance-token): $0.003 per call. Live USD price of Jito (JTO) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Pyth Network (PYTH) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/pyth-network): $0.003 per call. Live USD price of Pyth Network (PYTH) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Raydium (RAY) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/raydium): $0.003 per call. Live USD price of Raydium (RAY) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Ethereum Name Service (ENS) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/ethereum-name-service): $0.003 per call. Live USD price of Ethereum Name Service (ENS) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Compound (COMP) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/compound-governance-token): $0.003 per call. Live USD price of Compound (COMP) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Chiliz (CHZ) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/chiliz): $0.003 per call. Live USD price of Chiliz (CHZ) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [XDC Network (XDC) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/xdce-crowd-sale): $0.003 per call. Live USD price of XDC Network (XDC) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Berachain (BERA) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/berachain-bera): $0.003 per call. Live USD price of Berachain (BERA) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Virtuals Protocol (VIRTUAL) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/virtual-protocol): $0.003 per call. Live USD price of Virtuals Protocol (VIRTUAL) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Aerodrome (AERO) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/aerodrome-finance): $0.003 per call. Live USD price of Aerodrome (AERO) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Morpho (MORPHO) price in USD now, with 24h and 7d change](https://twin.unykorn.org/price/morpho): $0.003 per call. Live USD price of Morpho (MORPHO) with 24-hour and 7-day percentage change, timestamp and pricing confidence. No parameters needed. - [Ethereum DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/ethereum): $0.01 per call. One-call DeFi report for Ethereum: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Ethereum, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never z… - [Solana DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/solana): $0.01 per call. One-call DeFi report for Solana: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Solana, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never zeroe… - [Base DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/base): $0.01 per call. One-call DeFi report for Base: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Base, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never zeroed. N… - [BSC DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/bsc): $0.01 per call. One-call DeFi report for BSC: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on BSC, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never zeroed. No … - [Tron DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/tron): $0.01 per call. One-call DeFi report for Tron: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Tron, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never zeroed. N… - [Bitcoin DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/bitcoin): $0.01 per call. One-call DeFi report for Bitcoin: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Bitcoin, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never zer… - [Arbitrum DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/arbitrum): $0.01 per call. One-call DeFi report for Arbitrum: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Arbitrum, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never z… - [Hyperliquid L1 DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/hyperliquid-l1): $0.01 per call. One-call DeFi report for Hyperliquid L1: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Hyperliquid L1, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavaila… - [Monad DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/monad): $0.01 per call. One-call DeFi report for Monad: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Monad, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never zeroed.… - [Polygon DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/polygon): $0.01 per call. One-call DeFi report for Polygon: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Polygon, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never zer… - [Avalanche DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/avalanche): $0.01 per call. One-call DeFi report for Avalanche: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Avalanche, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never… - [Bittensor DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/bittensor): $0.01 per call. One-call DeFi report for Bittensor: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Bittensor, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never… - [Plasma DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/plasma): $0.01 per call. One-call DeFi report for Plasma: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Plasma, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never zeroe… - [Sui DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/sui): $0.01 per call. One-call DeFi report for Sui: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Sui, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never zeroed. No … - [OP Mainnet DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/op-mainnet): $0.01 per call. One-call DeFi report for OP Mainnet: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on OP Mainnet, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, nev… - [Stellar DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/stellar): $0.01 per call. One-call DeFi report for Stellar: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Stellar, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never zer… - [Near DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/near): $0.01 per call. One-call DeFi report for Near: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Near, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never zeroed. N… - [Ink DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/ink): $0.01 per call. One-call DeFi report for Ink: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Ink, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never zeroed. No … - [X Layer DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/x-layer): $0.01 per call. One-call DeFi report for X Layer: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on X Layer, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never zer… - [Cronos DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/cronos): $0.01 per call. One-call DeFi report for Cronos: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Cronos, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never zeroe… - [Starknet DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/starknet): $0.01 per call. One-call DeFi report for Starknet: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Starknet, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never z… - [Provenance DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/provenance): $0.01 per call. One-call DeFi report for Provenance: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Provenance, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, nev… - [Flare DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/flare): $0.01 per call. One-call DeFi report for Flare: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Flare, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never zeroed.… - [Gnosis DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/gnosis): $0.01 per call. One-call DeFi report for Gnosis: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Gnosis, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never zeroe… - [Mantle DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/mantle): $0.01 per call. One-call DeFi report for Mantle: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Mantle, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never zeroe… - [PulseChain DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/pulsechain): $0.01 per call. One-call DeFi report for PulseChain: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on PulseChain, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, nev… - [Stacks DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/stacks): $0.01 per call. One-call DeFi report for Stacks: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Stacks, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never zeroe… - [Rootstock DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/rootstock): $0.01 per call. One-call DeFi report for Rootstock: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Rootstock, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never… - [Cardano DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/cardano): $0.01 per call. One-call DeFi report for Cardano: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Cardano, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never zer… - [Aptos DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/aptos): $0.01 per call. One-call DeFi report for Aptos: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Aptos, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never zeroed.… - [dYdX DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/dydx): $0.01 per call. One-call DeFi report for dYdX: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on dYdX, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never zeroed. N… - [Morph DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/morph): $0.01 per call. One-call DeFi report for Morph: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Morph, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never zeroed.… - [Mezo DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/mezo): $0.01 per call. One-call DeFi report for Mezo: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Mezo, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavailable, never zeroed. N… - [Robinhood Chain DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees](https://twin.unykorn.org/defi/chain/robinhood-chain): $0.01 per call. One-call DeFi report for Robinhood Chain: TVL with 7d/30d change, top 10 protocols by TVL, stablecoin supply on Robinhood Chain, DEX volume (24h/7d, top 5) and protocol fees. Each part independent; failures marked unavai… - [Native coin balance for one address, on any of ten EVM chains](https://twin.unykorn.org/evm-native-balance): $0.003 per call. The native-coin balance (ETH, POL, BNB, AVAX, XDAI) of one address on the chain you name, in both wei and decimal units, at the block you name or the chain head. Read live at request time; every figure names the exact en… - [Transaction count (nonce) for one address](https://twin.unykorn.org/evm-nonce): $0.003 per call. How many transactions an address has SENT on this chain — which is also the nonce its next transaction must carry. Counts sent transactions only, never received ones. Read live at request time; every figure names the exa… - [Is this address a contract or an externally-owned account](https://twin.unykorn.org/evm-code): $0.003 per call. Whether deployed bytecode exists at an address, how many bytes it is, and a sha256 over that bytecode so two addresses can be compared for identical code without transferring it. Empty bytecode means no contract is deplo… - [Read one raw storage slot from any contract](https://twin.unykorn.org/evm-storage): $0.003 per call. The 32-byte word held in one storage slot of a contract, returned raw, as a big integer, and as the address it would be if the slot holds one — which is how proxy implementation and admin slots are read. Read live at req… - [Current gas price on any of ten EVM chains](https://twin.unykorn.org/evm-gas-price): $0.003 per call. The gas price the node would suggest right now, in wei and in gwei, plus the cost of a plain 21,000-gas transfer at that price in native units — the number you actually want when deciding whether to send. Read live at re… - [Suggested EIP-1559 priority fee (miner tip)](https://twin.unykorn.org/evm-priority-fee): $0.003 per call. The priority fee per gas the node suggests for timely inclusion, in wei and gwei. This is the tip component only, not the base fee. Not every node implements this method; if yours does not the response says unavailable r… - [Recent base-fee and priority-fee history](https://twin.unykorn.org/evm-fee-history): $0.004 per call. Base fee per gas for each of the last N blocks (up to 20), each block's gas-used ratio, and the 10th/50th/90th percentile priority fees paid in them — enough to tell whether fees are rising or falling before you send. Re… - [Current block height on any of ten EVM chains](https://twin.unykorn.org/evm-block-number): $0.003 per call. The chain tip as the node sees it, in decimal and hex. The cheapest possible liveness check for a chain. Read live at request time; every figure names the exact endpoint it came from, and an upstream that does not answer… - [EIP-155 chain id, confirmed from the node itself](https://twin.unykorn.org/evm-chain-id): $0.003 per call. The chain id the node reports, and whether it matches the id we expect for the chain you named — a direct check that an RPC is really on the network it claims. Read live at request time; every figure names the exact endp… - [Block header by number, with age and gas utilisation worked out](https://twin.unykorn.org/evm-block): $0.003 per call. One block header: number, hash, parent, miner, timestamp as both epoch and ISO8601, how many seconds old it is, gas used and limit with the utilisation percentage, base fee in gwei, transaction count and size. Read live … - [Block header by block hash](https://twin.unykorn.org/evm-block-by-hash): $0.003 per call. The same worked-out block header, looked up by block hash instead of height — which is how you confirm a block hash you were given is really on this chain and at what height. Read live at request time; every figure names… - [How many transactions are in a block](https://twin.unykorn.org/evm-block-tx-count): $0.003 per call. The transaction count of one block. The cheapest read for chain-activity sampling, with no block body transferred. Read live at request time; every figure names the exact endpoint it came from, and an upstream that does … - [The Nth transaction in a block](https://twin.unykorn.org/evm-tx-by-index): $0.003 per call. One transaction taken by position within a block: from, to, value, nonce, gas, and the first four bytes of calldata (the method selector) so you can tell a transfer from a contract call without decoding. Read live at req… - [Transaction receipt — did it succeed, what did it cost, what did it emit](https://twin.unykorn.org/evm-receipt): $0.003 per call. Success or failure, gas used, effective gas price, the fee actually paid in native units, any contract it created, and how many logs it emitted with their emitting addresses. Read live at request time; every figure names… - [Estimate the gas a transaction would use, before signing it](https://twin.unykorn.org/evm-estimate-gas): $0.003 per call. The gas a call would consume if sent now. Because estimation executes the call, a revert shows up here as an error with the node's reason — which makes this a pre-flight check as much as a cost estimate. An estimate agai… - [Simulate any read-only contract call](https://twin.unykorn.org/evm-call): $0.003 per call. Runs any calldata you supply against any contract, at the block you name, and returns the raw return data with its length and its decoding as a uint and as an address. Nothing is signed and nothing is sent. The return va… - [Event logs filtered by contract, topic and block range](https://twin.unykorn.org/evm-logs): $0.006 per call. Up to 100 matching event logs with their emitting address, topics, data, block number and transaction hash, plus the total matched so you know whether you are seeing everything. Capped at 100 logs per call and truncation… - [Every transaction receipt in one block, in one call](https://twin.unykorn.org/evm-block-receipts): $0.006 per call. All receipts for a block at once: per transaction the hash, status, gas used and log count, plus block totals for gas and successes and failures. Replaces one receipt call per transaction. Not every public node implement… - [Merkle-Patricia state proof for an account and optional storage slot](https://twin.unykorn.org/evm-proof): $0.006 per call. The account proof for an address — balance, nonce, code hash, storage root — plus a storage proof for the slot you name, in the form a light client verifies against a block state root. This is the read you buy when you n… - [Which client software is behind an RPC endpoint](https://twin.unykorn.org/evm-node-info): $0.003 per call. The client version string the node reports (geth, erigon, nethermind, reth and so on) together with the endpoint that answered — useful when a method behaves differently across clients and you need to know which one you … - [ERC20 token balance for one holder](https://twin.unykorn.org/erc20-balance): $0.003 per call. How much of one ERC20 token an address holds, as the raw integer and — when the contract reports its decimals — as a human amount. Read live at request time; every figure names the exact endpoint it came from, and an ups… - [Total supply of an ERC20 or ERC721 contract](https://twin.unykorn.org/erc20-supply): $0.003 per call. The total supply the contract reports, raw and decimal-adjusted. For ERC721 this is the number of tokens minted where the contract implements it. Read live at request time; every figure names the exact endpoint it came f… - [How much a spender is approved to move from an owner](https://twin.unykorn.org/erc20-allowance): $0.003 per call. The ERC20 allowance one address has granted another, raw and decimal-adjusted, with an explicit flag when the allowance is the unlimited (2^256-1) approval that security tooling looks for. Read live at request time; ever… - [Decimals of an ERC20 token](https://twin.unykorn.org/erc20-decimals): $0.003 per call. The decimals a token declares, plus the divisor that converts its raw integer amounts into human ones. The one value you must not guess when handling somebody's money. Read live at request time; every figure names the ex… - [Ticker symbol of a token contract](https://twin.unykorn.org/erc20-symbol): $0.003 per call. The symbol the contract itself returns, decoded from either the modern dynamic-string or the legacy bytes32 encoding. A symbol is self-declared and is NOT unique — many contracts claim the same ticker. Never identify a t… - [Name of a token contract](https://twin.unykorn.org/erc20-name): $0.003 per call. The name the contract returns, decoded from either the dynamic-string or the legacy bytes32 encoding. Self-declared and not unique; impersonating contracts copy names exactly. Read live at request time; every figure name… - [EIP-2612 permit nonce for an owner](https://twin.unykorn.org/erc20-nonce): $0.003 per call. The current permit nonce for one owner on a token that supports EIP-2612 gasless approvals — the value your next permit signature must carry. A contract that does not implement EIP-2612 answers empty, which is reported a… - [EIP-712 domain separator of a token](https://twin.unykorn.org/erc20-domain-separator): $0.003 per call. The EIP-712 domain separator a token uses for permit signatures — needed to build a valid off-chain signature and to confirm you are signing for the chain and contract you think you are. Read live at request time; every … - [Who owns an Ownable contract](https://twin.unykorn.org/contract-owner): $0.003 per call. The address returned by owner(), flagged when it is the zero address (ownership renounced). A privileged owner is the single most common centralisation risk in a token contract. Only covers the Ownable pattern. A contrac… - [Is a Pausable contract currently paused](https://twin.unykorn.org/contract-paused): $0.003 per call. Whether a contract implementing the Pausable pattern is paused right now — the check to run before you route value through it. A contract that does not implement paused() is reported as not implemented, which is NOT the … - [Who currently owns one ERC721 token](https://twin.unykorn.org/erc721-owner): $0.003 per call. The current owner of a specific token id. A token that was never minted or has been burned makes the call revert, which is reported as such rather than as an owner of zero. Read live at request time; every figure names t… - [How many NFTs from one collection an address holds](https://twin.unykorn.org/erc721-balance): $0.003 per call. The count of tokens an address owns in a specific ERC721 collection. Read live at request time; every figure names the exact endpoint it came from, and an upstream that does not answer is reported as unavailable — never … - [Metadata URI for one ERC721 token](https://twin.unykorn.org/erc721-token-uri): $0.003 per call. The metadata URI a token points at, with its scheme classified (ipfs, arweave, data-uri, https, other) so you know whether the metadata is content-addressed or sits on a server somebody can change. Returns the URI as the… - [The Nth token id an address owns in a collection](https://twin.unykorn.org/erc721-token-of-owner): $0.003 per call. One token id by position within an owner's holdings, for collections implementing ERC721Enumerable. Pair with erc721-balance to walk a wallet's tokens. Only works on ERC721Enumerable contracts; others answer empty and th… - [Which address is approved to move one NFT](https://twin.unykorn.org/erc721-approved): $0.003 per call. The single-token approval on an ERC721 token id, flagged when it is the zero address (nobody approved). A live approval on a valuable token is a standing risk. Read live at request time; every figure names the exact endp… - [Has an owner granted an operator control of their whole collection](https://twin.unykorn.org/erc721-approved-for-all): $0.003 per call. Whether an operator holds blanket approval over every token an owner holds in a collection. This is the approval that NFT drainers rely on, so it is the one worth checking. Read live at request time; every figure names t… - [ERC1155 balance for one owner and token id](https://twin.unykorn.org/erc1155-balance): $0.003 per call. How many copies of one ERC1155 token id an address holds. Read live at request time; every figure names the exact endpoint it came from, and an upstream that does not answer is reported as unavailable — never as a zero. - [Metadata URI for one ERC1155 token id](https://twin.unykorn.org/erc1155-uri): $0.003 per call. The ERC1155 metadata URI with its scheme classified, and the {id} substitution applied when the contract uses the standard template form. The URI is returned, not fetched. Read live at request time; every figure names th… - [Does a contract declare support for an ERC165 interface](https://twin.unykorn.org/erc165-supports): $0.003 per call. Whether a contract answers true for an interface id, with the well-known ids named for you (ERC721 0x80ac58cd, ERC1155 0xd9b67a26, ERC721Metadata 0x5b5e139f, ERC2981 royalties 0x2a55205a). ERC165 support is self-declared… - [Every trustline on an XRPL account](https://twin.unykorn.org/xrpl-lines): $0.004 per call. Up to 100 trustlines with currency code, issuer, balance, the limits each side has set, and the freeze and no-ripple flags — the full picture of which issued assets an account can actually hold and move. Non-standard 40-… - [One XRPL transaction, with its result code explained](https://twin.unykorn.org/xrpl-tx): $0.004 per call. A validated XRPL transaction: type, account, destination, destination tag, fee, sequence, the delivered amount as the ledger actually delivered it, and the engine result code with tesSUCCESS called out plainly. This is t… - [Everything an XRPL account owns that costs it reserve](https://twin.unykorn.org/xrpl-objects): $0.004 per call. The ledger objects an account owns — trustlines, offers, escrows, payment channels, tickets, NFT pages, signer lists — counted by type. Each one locks up owner reserve, so this explains exactly why an account's spendable… - [Open DEX offers placed by an XRPL account](https://twin.unykorn.org/xrpl-offers): $0.004 per call. Every resting order an account has on the XRPL decentralised exchange: what it is paying, what it is getting, the quality, and its sequence number — up to 100. Read live at request time; every figure names the exact endp… - [XRP Ledger network state — validated ledger, load and base fee](https://twin.unykorn.org/xrpl-server-info): $0.003 per call. The current validated ledger index and close time, the server's state, its load factor, and the base fee in XRP — the cheapest way to check the XRPL is live and what a transaction costs right now. Read live at request ti… - [One Stellar transaction, including its memo](https://twin.unykorn.org/stellar-tx): $0.004 per call. A Stellar transaction: source account, sequence, fee charged, operation count, success flag, ledger, timestamp, and the memo with its type — which is what payment references ride in on Stellar, so it is what you check to… - [The 50 most recent payments in or out of a Stellar account](https://twin.unykorn.org/stellar-payments): $0.005 per call. Recent payments newest first, each with direction relative to the account you asked about, counterparty, asset, amount, transaction hash and timestamp — the read for reconciling what actually arrived. The most recent 50 … - [Open offers an account has on the Stellar DEX](https://twin.unykorn.org/stellar-offers): $0.004 per call. Resting orders on the Stellar decentralised exchange: what is being sold, what is wanted, amount, price, and last-modified ledger. Read live at request time; every figure names the exact endpoint it came from, and an ups… - [Supply and holder counts for one issued Stellar asset](https://twin.unykorn.org/stellar-asset): $0.005 per call. For a specific code-and-issuer pair: the amount issued, how many accounts hold it broken down by authorization state, the number of claimable balances and liquidity pools holding it, and the issuer's auth flags — auth_re… - [Latest Stellar ledger — height, close time, fees and throughput](https://twin.unykorn.org/stellar-ledger): $0.003 per call. The newest closed ledger: sequence, close time and age in seconds, transaction and operation counts, base fee and base reserve in stroops, and the total coins in existence. Read live at request time; every figure names t… - [One Solana transaction, with its SOL and SPL balance changes](https://twin.unykorn.org/solana-tx): $0.005 per call. A confirmed Solana transaction: slot, block time, fee in lamports and SOL, success or the error the runtime returned, the accounts it touched, and the pre/post balance deltas for both SOL and SPL tokens — which is how yo… - [The 50 most recent transaction signatures for a Solana address](https://twin.unykorn.org/solana-signatures): $0.005 per call. Recent signatures newest first with slot, block time, success flag and any memo — the index you walk to find the transaction you care about before paying to fetch it in full. Most recent 50, subject to the public node's … - [Current Solana slot](https://twin.unykorn.org/solana-slot): $0.003 per call. The current confirmed slot. The cheapest Solana liveness check there is. Read live at request time; every figure names the exact endpoint it came from, and an upstream that does not answer is reported as unavailable — ne… - [Solana epoch progress](https://twin.unykorn.org/solana-epoch): $0.003 per call. The current epoch, how far through it the network is as a percentage, absolute slot, block height and transaction count — what staking and reward timing is calculated from. Read live at request time; every figure names t… - [Raw Solana account: owner program, rent-exemption, data size](https://twin.unykorn.org/solana-account-info): $0.004 per call. Which program owns an account, whether it is executable, its lamport balance, its data size, and the parsed account type when the owning program is one the node can parse — the read that tells you what KIND of thing an a… - [Bitcoin address balance, confirmed and unconfirmed](https://twin.unykorn.org/btc-address): $0.005 per call. The confirmed balance of a Bitcoin address in both satoshis and BTC, its unconfirmed (mempool) balance shown separately, and lifetime received, spent and transaction counts. Confirmed and unconfirmed are never added toge… - [Every spendable UTXO at a Bitcoin address](https://twin.unykorn.org/btc-utxos): $0.005 per call. The unspent outputs an address controls, each with its txid, output index, value and confirmation status — what a wallet actually needs for coin selection, plus the totals split between confirmed and unconfirmed. Capped … - [One Bitcoin transaction with its fee rate and confirmation status](https://twin.unykorn.org/btc-tx): $0.005 per call. A Bitcoin transaction: confirmed or still in the mempool, block height and time if mined, virtual size and weight, the fee in satoshis and BTC with the fee rate in sat/vB worked out, whether it signals RBF, and its input… - [Recommended Bitcoin fee rates right now](https://twin.unykorn.org/btc-fees): $0.003 per call. Fee rates in sat/vB for fastest, half-hour, hour, economy and minimum targets, plus the cost of a typical 140-vB transaction at each rate in satoshis and BTC — the number you actually need to decide what to pay. Read liv… - [Current Bitcoin block height](https://twin.unykorn.org/btc-tip): $0.003 per call. The chain tip height, which is what you subtract a transaction's block height from to get its confirmation count. Read live at request time; every figure names the exact endpoint it came from, and an upstream that does n… - [One Bitcoin block by hash](https://twin.unykorn.org/btc-block): $0.004 per call. A block header with its height, timestamp and age, transaction count, size and weight, difficulty, merkle root, nonce, bits, and the total fees it collected. Read live at request time; every figure names the exact endpoi… - [Bitcoin mempool size and backlog](https://twin.unykorn.org/btc-mempool): $0.003 per call. How many transactions are waiting, the total virtual size of the backlog, and the total fees on offer in it — the congestion picture behind whatever fee rate you are being quoted. Read live at request time; every figure … - [SHA-256 digest of text or raw bytes](https://twin.unykorn.org/hash-sha256): $0.003 per call. The SHA-256 digest of what you send — UTF-8 text or 0x-prefixed bytes — returned as hex and base64, with the exact byte length that was hashed so you can confirm we hashed what you meant. The workhorse digest: Bitcoin, T… - [SHA-512 digest of text or raw bytes](https://twin.unykorn.org/hash-sha512): $0.003 per call. The SHA-512 digest of what you send — UTF-8 text or 0x-prefixed bytes — returned as hex and base64, with the exact byte length that was hashed so you can confirm we hashed what you meant. SHA-512, the 64-byte member of t… - [SHA-384 digest of text or raw bytes](https://twin.unykorn.org/hash-sha384): $0.003 per call. The SHA-384 digest of what you send — UTF-8 text or 0x-prefixed bytes — returned as hex and base64, with the exact byte length that was hashed so you can confirm we hashed what you meant. SHA-384, a truncated SHA-512 use… - [SHA-224 digest of text or raw bytes](https://twin.unykorn.org/hash-sha224): $0.003 per call. The SHA-224 digest of what you send — UTF-8 text or 0x-prefixed bytes — returned as hex and base64, with the exact byte length that was hashed so you can confirm we hashed what you meant. SHA-224, the truncated SHA-256 v… - [SHA-1 digest of text or raw bytes](https://twin.unykorn.org/hash-sha1): $0.003 per call. The SHA-1 digest of what you send — UTF-8 text or 0x-prefixed bytes — returned as hex and base64, with the exact byte length that was hashed so you can confirm we hashed what you meant. SHA-1, for reading legacy systems … - [MD5 digest of text or raw bytes](https://twin.unykorn.org/hash-md5): $0.003 per call. The MD5 digest of what you send — UTF-8 text or 0x-prefixed bytes — returned as hex and base64, with the exact byte length that was hashed so you can confirm we hashed what you meant. MD5, for legacy checksums and ETag c… - [SHA3-256 digest of text or raw bytes](https://twin.unykorn.org/hash-sha3-256): $0.003 per call. The SHA3-256 digest of what you send — UTF-8 text or 0x-prefixed bytes — returned as hex and base64, with the exact byte length that was hashed so you can confirm we hashed what you meant. NIST SHA3-256, the standardised… - [SHA3-512 digest of text or raw bytes](https://twin.unykorn.org/hash-sha3-512): $0.003 per call. The SHA3-512 digest of what you send — UTF-8 text or 0x-prefixed bytes — returned as hex and base64, with the exact byte length that was hashed so you can confirm we hashed what you meant. NIST SHA3-512. Deterministic: i… - [BLAKE2b-512 digest of text or raw bytes](https://twin.unykorn.org/hash-blake2b512): $0.003 per call. The BLAKE2b-512 digest of what you send — UTF-8 text or 0x-prefixed bytes — returned as hex and base64, with the exact byte length that was hashed so you can confirm we hashed what you meant. BLAKE2b-512, faster than SHA… - [BLAKE2s-256 digest of text or raw bytes](https://twin.unykorn.org/hash-blake2s256): $0.003 per call. The BLAKE2s-256 digest of what you send — UTF-8 text or 0x-prefixed bytes — returned as hex and base64, with the exact byte length that was hashed so you can confirm we hashed what you meant. BLAKE2s-256, the 32-bit-opti… - [RIPEMD-160 digest of text or raw bytes](https://twin.unykorn.org/hash-ripemd160): $0.003 per call. The RIPEMD-160 digest of what you send — UTF-8 text or 0x-prefixed bytes — returned as hex and base64, with the exact byte length that was hashed so you can confirm we hashed what you meant. RIPEMD-160, the second half o… - [Ethereum keccak256 — the original Keccak, not NIST SHA3](https://twin.unykorn.org/hash-keccak256): $0.003 per call. The keccak256 digest Ethereum actually uses. This is a different function from NIST SHA3-256 despite the shared name, and confusing the two is one of the most common and most expensive mistakes in EVM tooling. Computed w… - [HMAC of a message under a key](https://twin.unykorn.org/hash-hmac): $0.003 per call. An HMAC over your message with your key — the construction webhook signatures and API request signing use. Defaults to SHA-256; name any digest your runtime supports. Returned as hex and base64. The key you send is used … - [Bitcoin HASH256 — SHA-256 applied twice](https://twin.unykorn.org/hash-double-sha256): $0.003 per call. SHA-256 of the SHA-256 of your input, which is how Bitcoin derives txids, block hashes and merkle nodes. Also returned byte-reversed, because Bitcoin displays txids in the opposite byte order to the one it hashes in — th… - [Bitcoin HASH160 — RIPEMD-160 of SHA-256](https://twin.unykorn.org/hash-hash160): $0.003 per call. The HASH160 of your input: SHA-256 then RIPEMD-160. This is the 20-byte value inside every Bitcoin P2PKH and P2WPKH address, so it is the step between a public key and an address. Deterministic: identical input always yi… - [Base64 and base64url encoding of text or bytes](https://twin.unykorn.org/encode-base64): $0.003 per call. Standard base64 and the URL-safe unpadded variant side by side, with the byte length encoded. Two variants in one call because picking the wrong one is the usual bug. Deterministic: identical input always yields identica… - [Decode base64 or base64url to bytes and text](https://twin.unykorn.org/decode-base64): $0.003 per call. Decodes either variant — padded, unpadded, standard or URL-safe — and returns the bytes as hex, the UTF-8 rendering, and whether those bytes are in fact valid UTF-8 (so binary is not silently shown as mojibake). Determin… - [Hex encoding of UTF-8 text](https://twin.unykorn.org/encode-hex): $0.003 per call. Your text as hex, with and without the 0x prefix, plus its byte length and its character length — which differ whenever the text is not pure ASCII, and that difference is the source of a great many off-by-N bugs. Determi… - [Decode hex to text and other encodings](https://twin.unykorn.org/decode-hex): $0.003 per call. Hex bytes rendered as UTF-8 (only when they really are valid UTF-8), base64, and a big integer — with an explicit flag rather than a silent replacement-character mess when the bytes are binary. Deterministic: identical i… - [Base58 encoding (Bitcoin alphabet)](https://twin.unykorn.org/encode-base58): $0.003 per call. Base58 in the Bitcoin alphabet — the encoding Solana addresses and signatures, Bitcoin legacy addresses and IPFS CIDv0 all use. Leading zero bytes are preserved as leading "1"s, which naive implementations drop. Determin… - [Decode base58 to bytes](https://twin.unykorn.org/decode-base58): $0.003 per call. Decodes Bitcoin-alphabet base58 to hex and reports the byte length — 32 bytes for a Solana address, 64 for a Solana signature, 25 for a legacy Bitcoin address including its checksum. An invalid character is named rather … - [Decode and checksum-verify a bech32 or bech32m string](https://twin.unykorn.org/decode-bech32): $0.003 per call. Verifies the checksum, tells you which variant it is (bech32 for segwit v0, bech32m for v1 taproot and later), and returns the human-readable prefix and the decoded payload. The prefix identifies the network: bc for Bitc… - [RFC 4648 base32 encoding](https://twin.unykorn.org/encode-base32): $0.003 per call. Base32 as RFC 4648 defines it, padded and unpadded. This is the encoding TOTP secrets, onion addresses and Stellar keys are written in. Deterministic: identical input always yields identical output. - [Percent-encode and decode a string for URLs](https://twin.unykorn.org/encode-url): $0.003 per call. Your string percent-encoded two ways — encodeURIComponent for query values and encodeURI for whole URLs, which differ on the reserved characters — and decoded back, so you can see whether it was already encoded before yo… - [Decode a JWT's header and claims — WITHOUT verifying it](https://twin.unykorn.org/decode-jwt): $0.003 per call. Splits a JWT and decodes its header and payload, resolving the standard time claims (exp, iat, nbf) into ISO timestamps and telling you whether it is currently expired or not yet valid. THE SIGNATURE IS NOT VERIFIED AND … - [Function selector from a Solidity signature](https://twin.unykorn.org/abi-function-selector): $0.003 per call. The 4-byte selector that begins calldata for a function, derived as the first four bytes of keccak256 over the canonical signature — plus the full hash, so you can check the derivation yourself. The signature must alread… - [Event topic0 from a Solidity event signature](https://twin.unykorn.org/abi-event-topic): $0.003 per call. The full 32-byte keccak256 of an event signature — the topic0 you filter eth_getLogs on. Pair it with the evm-logs endpoint to pull matching events. Canonical form required, same as function selectors; the exact string h… - [ABI-encode a list of typed parameters](https://twin.unykorn.org/abi-encode): $0.003 per call. Standard ABI encoding of your values against the types you declare, returned as hex with its byte length and 32-byte word count. Use it to build calldata by hand, or to check what a library produced. Encodes parameters o… - [ABI-decode return data against declared types](https://twin.unykorn.org/abi-decode): $0.003 per call. Decodes hex return data — from eth_call, a log's data field, or calldata with the selector stripped — into values against the types you declare. Big integers come back as strings so nothing is lost to floating point. ABI… - [EIP-55 checksum an Ethereum address, and check one](https://twin.unykorn.org/eth-checksum-address): $0.003 per call. The EIP-55 mixed-case form of an address, whether the input you gave already carried a valid checksum, and whether it was all-lowercase (which is valid but carries no typo protection). The cheapest guard there is against… - [Convert between wei, gwei, ether and token units](https://twin.unykorn.org/eth-units): $0.003 per call. One amount expressed every way at once: raw base units, gwei, ether, and the decimal form for whatever token decimals you name. Say whether your input is in base units or whole units; the conversion is exact big-integer … - [Predict a contract address before it is deployed](https://twin.unykorn.org/eth-contract-address): $0.003 per call. The address a deployment will land at: from deployer and nonce for CREATE, or from deployer, salt and init-code hash for CREATE2. Deterministic, so you can fund or reference a contract before it exists — which is how cou… - [EIP-191 digest of a message (what personal_sign actually signs)](https://twin.unykorn.org/eth-message-hash): $0.003 per call. The digest a wallet produces for a personal_sign request: your message with the "\x19Ethereum Signed Message:\n" prefix applied, then keccak256. The prefix exists so a signed message can never be replayed as a tr… - [Recover which address signed a message](https://twin.unykorn.org/eth-recover-signer): $0.003 per call. Takes a message and a 65-byte EIP-191 signature and returns the address that produced it, plus the digest that was signed and the signature's r, s and v components. This is how you verify a login, an off-chain order or a… - [ENS namehash and labelhash for a name](https://twin.unykorn.org/eth-namehash): $0.003 per call. The EIP-137 namehash of an ENS name — the node id every ENS registry and resolver lookup is keyed by — together with the labelhash of its leftmost label, which is the token id of a .eth registration NFT. Deterministic: i… - [RLP-encode a value or nested list](https://twin.unykorn.org/eth-rlp-encode): $0.003 per call. Recursive Length Prefix encoding of hex strings and arbitrarily nested arrays of them — the serialisation Ethereum uses for legacy transactions, block headers and Merkle-Patricia trie nodes. Deterministic: identical inpu… - [Pad hex to a fixed byte width](https://twin.unykorn.org/eth-pad-hex): $0.003 per call. Your hex left- or right-padded to a byte width (32 by default), which is the shape every EVM word, storage slot and ABI parameter has to be in. Deterministic: identical input always yields identical output. - [Which chain does this address belong to, and is it well-formed](https://twin.unykorn.org/address-identify): $0.003 per call. Takes any address string and identifies every chain family whose format it matches — EVM, Bitcoin (legacy, P2SH, bech32, taproot), XRPL, Stellar, Solana, Cosmos-style bech32, Tron — running the real checksum where the fo… - [Verify a base58check string and split out its version byte](https://twin.unykorn.org/base58check-verify): $0.003 per call. Recomputes the four-byte double-SHA256 checksum on a base58check string and tells you whether it holds, then separates the version byte and the payload — which is how a Bitcoin address, a WIF key or an extended key is ta… - [Compare two hashes or secrets in constant time](https://twin.unykorn.org/compare-digest): $0.003 per call. Whether two strings are equal, compared in constant time so the comparison itself leaks nothing about where they diverge — plus, when they differ, how many characters they share as a prefix, which is what you want when d… - [Merkle root over a list of leaves](https://twin.unykorn.org/merkle-root): $0.003 per call. The merkle root of up to 4,096 leaves, built with sorted pairs and duplicated odd nodes — the OpenZeppelin MerkleProof convention that airdrop and allowlist contracts verify against. Choose keccak256 (EVM default) or sha… - [Verify a merkle proof against a root](https://twin.unykorn.org/merkle-verify): $0.003 per call. Walks a merkle proof from your leaf and reports whether it arrives at the root you expect, showing the computed root and every intermediate hash so a failure tells you where it diverged rather than just that it failed. S… - [Canonical JSON and its digest](https://twin.unykorn.org/json-canonical): $0.003 per call. Your JSON in the canonical form this rail uses — keys sorted at every level, undefined dropped, no whitespace — with its sha256 and keccak256. Two parties who canonicalise before hashing get the same digest for the same … - [Structural difference between two JSON values](https://twin.unykorn.org/json-diff): $0.003 per call. Every leaf path that was added, removed or changed between two JSON documents, with the old and new values at each path, plus a count and a same-or-not verdict computed over the canonical forms. For checking what actuall… - [Convert between unix time and ISO 8601, with drift against now](https://twin.unykorn.org/time-convert): $0.003 per call. One instant expressed every way: unix seconds, unix milliseconds, ISO 8601 UTC, RFC 2822, and how far it is from right now in seconds with a human phrase. Accepts seconds, milliseconds or an ISO string and tells you whic… - [Cryptographically secure random bytes, nonce and UUID](https://twin.unykorn.org/random-bytes): $0.003 per call. Random bytes from the operating system CSPRNG (up to 256), as hex, base64 and base58, together with a v4 UUID and a decimal integer from the same draw. For nonces, salts and idempotency keys. Generated on our machine and… - [Current USD price of an ERC20 token](https://twin.unykorn.org/token-price): $0.004 per call. The USD price DefiLlama currently has for a token contract, with its symbol, decimals, the timestamp the price was observed and how stale that makes it in seconds, plus DefiLlama's own confidence score for the quote. An … - [Current USD price of a major coin by name](https://twin.unykorn.org/native-price): $0.003 per call. The USD price for a coin named the CoinGecko way — bitcoin, ethereum, solana, ripple, stellar — with the observation timestamp and staleness in seconds. Aggregated spot, not an execution price. Use the coin id (bitcoin),… - [USD price of a token at a past moment](https://twin.unykorn.org/token-price-at): $0.005 per call. What a token was worth in USD at a unix timestamp you name, with the timestamp of the price actually used and how far that is from the one you asked for — because historical price feeds are sampled, not continuous, and p… - [Recent percentage price change for a token](https://twin.unykorn.org/token-price-change): $0.005 per call. The percentage change DefiLlama reports for a token over its default recent window, with the direction stated plainly. A single aggregated window. It is a description of the past, not a prediction, and not advice. Read l… - [Resolve an ENS name to an Ethereum address](https://twin.unykorn.org/ens-resolve): $0.005 per call. Takes an ENS name, computes its namehash, finds the resolver the registry has recorded for it, and asks that resolver for the address — reporting each step, so an unresolved name tells you whether it has no resolver set … - [Reverse-resolve an address to its primary ENS name](https://twin.unykorn.org/ens-reverse): $0.005 per call. Looks up the reverse record for an address and returns the primary name its owner has set, plus a FORWARD check confirming that name really resolves back to the same address. A reverse record is set by the address owner … - [Read a text record from an ENS name](https://twin.unykorn.org/ens-text): $0.005 per call. One text record from a name's resolver — avatar, url, description, com.twitter, com.github, email and so on. Defaults to avatar. Returns the record exactly as stored, with the resolver that served it. Text records are se… - [Everything cheap that is knowable about an address, in one call](https://twin.unykorn.org/evm-address-summary): $0.006 per call. Native balance, transaction count, whether it holds bytecode, its code hash, proxy detection on both standard slots, and — when it is a contract — its ERC20 identity if it has one. The first call you make about an unknow… - [Name, symbol, decimals and supply of a token in one call](https://twin.unykorn.org/evm-token-info): $0.005 per call. The four ERC20 identity fields together, each with a flag saying whether the contract actually answered, plus the supply decimal-adjusted. Four reads for the price of one, and no guessing: a contract that will not report… - [Which of ten EVM chains has this address ever touched](https://twin.unykorn.org/evm-multi-chain-scan): $0.008 per call. Sweeps all ten chains at once and reports, per chain, the native balance, the number of transactions sent, and whether bytecode is deployed — so you learn where an address is actually active instead of guessing a chain a… - [The 50 most recent transactions for an XRPL account](https://twin.unykorn.org/xrpl-history): $0.006 per call. Recent transactions newest first, each with type, counterparty, direction relative to this account, fee, result code, the delivered amount, and the destination tag — which on XRPL is how exchanges route a deposit to the … - [What an XRPL issuer actually has outstanding](https://twin.unykorn.org/xrpl-gateway-balances): $0.005 per call. For an issuing account: the total obligations it has issued per currency — the on-ledger IOUs it owes holders — plus any balances it holds in other issuers' assets. This is the read that turns "we issued a token" into a … - [XLS-20 NFTs held by an XRPL account](https://twin.unykorn.org/xrpl-nfts): $0.005 per call. Up to 100 NFTs an account holds, each with its token id, issuer, taxon, serial, transfer fee and flags, and the URI decoded from hex to text where it is readable. Read live at request time; every figure names the exact e… - [XRPL order book for a currency pair](https://twin.unykorn.org/xrpl-book): $0.006 per call. The top 20 resting offers for a pair on the XRPL decentralised exchange, with the best price and the total depth available — the read that tells you whether a market exists before you route through it. One side of the bo… - [The 50 most recent operations on a Stellar account](https://twin.unykorn.org/stellar-operations): $0.005 per call. Every recent operation, not just payments — trustline changes, offers, account merges, data entries, clawbacks — with type, success flag, transaction hash and timestamp. This is the full audit trail where stellar-payment… - [Recent DEX trades an account was part of](https://twin.unykorn.org/stellar-trades): $0.005 per call. Fills on the Stellar DEX involving this account: what was sold and bought with amounts and assets, the counterparty, the price as a rational number, and whether this account was the base or counter side. Read live at req… - [Claimable balances waiting for an account](https://twin.unykorn.org/stellar-claimable): $0.005 per call. Balances somebody has set aside that this account is entitled to claim, with the asset, amount, sponsor and the predicate that governs when it may be claimed — Stellar's escrow and airdrop primitive, and money people rou… - [Stellar liquidity pools an account has shares in](https://twin.unykorn.org/stellar-liquidity-pools): $0.005 per call. Pools this account holds shares in, with the reserves on each side, total shares, the fee in basis points, and how many accounts are in each pool. Read live at request time; every figure names the exact endpoint it came … - [Stellar fee statistics and surge-pricing state](https://twin.unykorn.org/stellar-fee-stats): $0.003 per call. The current base fee, ledger capacity usage, and the distribution of fees recently accepted — the percentiles that tell you what to bid when the network is busy rather than guessing. Read live at request time; every figu… - [Solana total and circulating SOL supply](https://twin.unykorn.org/solana-supply): $0.003 per call. Total, circulating and non-circulating SOL in both lamports and SOL, with the circulating share as a percentage. Read live at request time; every figure names the exact endpoint it came from, and an upstream that does no… - [Current Solana inflation rate split](https://twin.unykorn.org/solana-inflation): $0.003 per call. The total inflation rate for the current epoch and how it splits between validators and the foundation — the starting point for any staking-yield calculation. Read live at request time; every figure names the exact endpo… - [Recent Solana priority fees, summarised](https://twin.unykorn.org/solana-priority-fees): $0.003 per call. Prioritization fees from recent slots reduced to the numbers you act on: minimum, median, 75th and 95th percentile and maximum in micro-lamports per compute unit, plus how many slots were sampled and how many of them too… - [Latest Solana blockhash and how long it stays valid](https://twin.unykorn.org/solana-blockhash): $0.003 per call. The recent blockhash a transaction must reference to be accepted, the last slot at which it remains valid, and the slot it was read at — a Solana transaction whose blockhash has expired is rejected, and this is the value… - [Lamports needed to make a Solana account rent-exempt](https://twin.unykorn.org/solana-rent-exempt): $0.003 per call. The minimum balance an account of a given data size must hold to be exempt from rent, in lamports and SOL — the deposit you must fund when creating any Solana account, including a token account. Read live at request time… - [Balance of one specific SPL token account](https://twin.unykorn.org/solana-token-balance): $0.003 per call. The balance held in a single token account address (not an owner wallet): the raw amount, the decimals, and the UI amount. Takes a TOKEN ACCOUNT address. For an owner wallet use solana-account, which enumerates the token… - [Recent Bitcoin transactions for an address](https://twin.unykorn.org/btc-address-txs): $0.006 per call. The most recent transactions touching an address, each with confirmation status, block height, fee, size, and the net value change for THIS address — which is the number you actually want and which raw transaction data d… - [Block hash at a given Bitcoin height](https://twin.unykorn.org/btc-block-at-height): $0.003 per call. The canonical block hash at a height — the lookup you need before fetching a block, and the check that confirms which chain you are on at that height. Read live at request time; every figure names the exact endpoint it c… - [Bitcoin difficulty adjustment progress and estimate](https://twin.unykorn.org/btc-difficulty): $0.003 per call. How far through the current 2,016-block difficulty period the network is, the estimated change at the next adjustment, the average block time so far in this period, and the estimated time until the adjustment. Read live … - [Split calldata into its selector and 32-byte words](https://twin.unykorn.org/calldata-split): $0.003 per call. Separates the 4-byte selector from the argument words and shows each word three ways — raw, as a big integer, and as the address it would be — so you can read an unknown transaction's arguments without having its ABI. Fl… - [Compute the storage slot of a Solidity mapping entry](https://twin.unykorn.org/storage-slot-mapping): $0.003 per call. The slot where mapping[key] lives, as keccak256(pad(key) . pad(slot)) — the derivation you need to read a balance or an allowance straight out of storage with eth_getStorageAt, bypassing whatever the contract chooses to … - [EIP-712 typed-data digest](https://twin.unykorn.org/eip712-hash): $0.003 per call. The digest a wallet signs for typed data: the full EIP-712 hash over your domain, type definitions and message. Compute it before you sign to confirm the wallet is showing you the same thing, or after to verify what some… - [Solidity abi.encodePacked equivalent](https://twin.unykorn.org/encode-packed): $0.003 per call. Tightly-packed encoding as Solidity's abi.encodePacked produces it, with the keccak256 of the result — because packed encoding is almost always fed straight into a hash. Packed encoding is AMBIGUOUS: encodePacked("a","bc… - [Reference data for a supported EVM chain](https://twin.unykorn.org/chain-info): $0.003 per call. Chain id, native currency symbol, and the public RPC endpoints this rail will try for a chain, in the order it tries them — plus the full list of chains every EVM endpoint here accepts. Deterministic: identical input alw… - [Decode an XRPL 40-hex currency code to its ticker](https://twin.unykorn.org/xrpl-currency-decode): $0.003 per call. XRPL currency codes are either three characters or a 40-hex blob. This converts between the two, decoding a hex code to its readable ticker and encoding a ticker longer than three characters into the hex form the ledger … - [Convert between XRP and drops](https://twin.unykorn.org/xrpl-drops): $0.003 per call. XRP to drops and back with exact integer arithmetic. One XRP is 1,000,000 drops, the ledger only ever accepts drops, and a rounding error here is a real loss — so this never uses floating point. Deterministic: identical … - [Expand Bitcoin nBits into a target and difficulty](https://twin.unykorn.org/btc-bits-to-target): $0.003 per call. The compact nBits field from a block header expanded into its full 256-bit target, the difficulty it represents relative to the genesis target, and the expected number of hashes per block — the arithmetic behind every di… - [Identify a Bitcoin output script](https://twin.unykorn.org/btc-script-type): $0.003 per call. Classifies a scriptPubKey — P2PKH, P2SH, P2WPKH, P2WSH, P2TR, multisig, OP_RETURN or non-standard — and pulls out the key or script hash it commits to. For reading raw transaction outputs without a full node. Pattern mat… - [Derive an Ethereum address from a public key](https://twin.unykorn.org/eth-address-from-pubkey): $0.003 per call. The address a secp256k1 public key corresponds to: keccak256 of the uncompressed key without its 0x04 prefix, last 20 bytes, EIP-55 checksummed. Accepts the 65-byte uncompressed form or the 64-byte form without the prefi… - [Percentage and multiple change between two values](https://twin.unykorn.org/percent-change): $0.003 per call. The change from one value to another as a percentage, as a multiple, and in basis points, with the direction stated. Handles the zero-baseline case explicitly instead of returning Infinity. Deterministic: identical input… - [Convert between APR and APY at any compounding frequency](https://twin.unykorn.org/apr-apy): $0.003 per call. APR to APY or back, for a compounding frequency you choose — daily, monthly, or any number of periods — with continuous compounding given alongside as the theoretical ceiling. The gap between the two is what quoting APR … - [Future value with compounding and optional regular contributions](https://twin.unykorn.org/compound-growth): $0.003 per call. What a principal becomes at a given annual rate over a number of years, with compounding at your chosen frequency and an optional contribution each period. Returns the final value, total contributed, total growth, and a … - [Slippage between an expected and an actual fill](https://twin.unykorn.org/slippage-calc): $0.003 per call. How far an execution moved from the price you expected, in percent and basis points, with the minimum output a tolerance in basis points would have allowed and whether the actual fill would have passed that check. Determ… - [Weighted average, with the plain average for comparison](https://twin.unykorn.org/weighted-average): $0.003 per call. The weighted mean of up to 1,000 values — a volume-weighted price, a blended cost basis, a portfolio rate — alongside the unweighted mean, the total weight, and each entry's share, so you can see which entries are actual… - [Parse CSV into JSON rows](https://twin.unykorn.org/csv-to-json): $0.003 per call. CSV (up to 48 KiB) parsed into objects keyed by the header row, handling quoted fields, embedded delimiters and escaped quotes. Reports the column names, the row count, and any rows whose field count does not match the h… - [Render JSON rows as CSV](https://twin.unykorn.org/json-to-csv): $0.003 per call. An array of objects rendered as CSV, with quoting applied wherever a value contains a delimiter, quote or newline. Columns are taken from the union of every row's keys unless you name them, so a row missing a field produ… - [Flatten nested JSON to leaf paths](https://twin.unykorn.org/json-flatten): $0.003 per call. Every leaf in a nested document as a flat path-to-value map, with arrays indexed. Turns an arbitrarily nested API response into something you can diff, store in a column, or compare field by field. Deterministic: identic… - [Byte, character, word and line counts for a string](https://twin.unykorn.org/text-stats): $0.003 per call. The measurements that differ and that people assume do not: UTF-8 byte length, JavaScript character length, true Unicode code-point count, grapheme-affecting surrogate pairs, plus word, line and whitespace counts, and a … - [Deterministic UUID v5 from a name](https://twin.unykorn.org/uuid-v5): $0.003 per call. A version 5 UUID derived by SHA-1 over a namespace and a name — the same name in the same namespace always yields the same UUID, on any machine, forever. That is what makes it usable as an idempotency key or a stable rec… - [Screen one address against sanctions and scam blocklists](https://twin.unykorn.org/screen-sanctions): $0.008 per call. Checks a single address against the OFAC SDN digital-currency entries, community scam-address blocklists, and the Blockchain Fraud case registry, naming the dataset and the fetch URL for every list actually consulted and… - [Is a contract's source code verified on the explorer](https://twin.unykorn.org/contract-verified): $0.006 per call. Whether the explorer holds verified source for a contract, and if so its name, compiler version, optimisation settings, licence, whether it is a proxy, and whether it has been flagged as a scam by the explorer. Verified … - [How concentrated is a token's ownership](https://twin.unykorn.org/token-concentration): $0.008 per call. The top holders of an ERC20 with each one's share of supply, the combined top-5 and top-10 shares, and the total holder count — the distribution figure that tells you whether a handful of wallets can move or exit the mar… - [How old and how active is an address](https://twin.unykorn.org/address-activity): $0.008 per call. When an address first and last transacted, how many transactions it has, and a sample of its most recent distinct counterparties. A wallet created an hour ago with two transactions is a different counterparty risk from o… - [Global sanctions name screen: one person or organisation against the UN, US OFAC SDN, EU and UK lists](https://twin.unykorn.org/screen/name): $0.02 per call. Screens ONE name (with its aliases and transliterations) against four official sanctions lists, refreshed twice a day straight from the UN, US Treasury, EU and UK publishers. Returns match / possible_match / no_match, ev… - [Global company lookup: any company worldwide by name, LEI or SEC CIK, with its ownership parents](https://twin.unykorn.org/screen/entity): $0.01 per call. Looks up ONE company in the official registries: GLEIF (ISO 17442 Legal Entity Identifiers, every country) and US SEC EDGAR. By LEI: legal name, registration and entity status, jurisdiction, legal and headquarters addres… - [Counterparty Report: a company, its ownership parents and a sanctions screen of the whole group, with one verdict](https://twin.unykorn.org/report/counterparty): $0.25 per call. One call that resolves ONE company in the GLEIF registry (by LEI or name), follows its reported direct and ultimate parent, and screens every entity in that group under every registered name (legal, other, transliterated… - [Deal red-flag scan: offer text checked against published regulator warnings on prime-bank and advance-fee schemes](https://twin.unykorn.org/screen/deal): $0.05 per call. Checks the TEXT of ONE offer, term sheet or funding package (20-20,000 characters) against a sourced library of patterns that regulators have published warnings about: prime-bank and trading programs, bank-guarantee or S… - [Prepaid credits: $5 balance for any Genesis402 endpoint](https://twin.unykorn.org/credits/5): $5 per call. A prepaid balance of $5.00 returned as a bearer token (g402c_…). Send it as the X-Genesis402-Credit header on any paid endpoint: the call runs at its listed price, drawn from the balance, with no on-chain settlement per … - [Prepaid credits: $25 balance for any Genesis402 endpoint](https://twin.unykorn.org/credits/25): $25 per call. A prepaid balance of $25.00 returned as a bearer token (g402c_…). Send it as the X-Genesis402-Credit header on any paid endpoint: the call runs at its listed price, drawn from the balance, with no on-chain settlement per… ## Free endpoints - [x402 discovery](https://twin.unykorn.org/.well-known/x402): lanes, prices, terms, worked examples - [OpenAPI](https://twin.unykorn.org/openapi.json) - [A2A agent card](https://twin.unykorn.org/.well-known/agent-card.json): skills list (card only; skills are called over HTTP) - [Public receipts](https://twin.unykorn.org/receipts): every settled call, payer class internal/external, result hash - [Sample signed receipt](https://twin.unykorn.org/receipts/sample): one complete receipt to check at POST /receipts/verify - [Health](https://twin.unykorn.org/health) ## Rules - One payment proof buys exactly one execution; presenting it again returns 409 (already_delivered on Base USDC, tx_hash_already_consumed on the pay-first lanes), except on /check/*: the same proof with the same body within 10 minutes returns the stored result (replayed: true) at no extra charge. - Invalid input is refused with 400 before any payment is read. - If delivery fails after payment (a data source that does not answer counts as a failure) nothing is delivered and no receipt is issued: on Base or Polygon USDC and MPP you get a private owed ticket that re-delivers once at no extra cost; on Solana USDC the result is owed: write to kevan@unykorn.org with the transaction hash and an operator will follow up; on the pay-first lanes the proof is released and can be re-presented until the retry_until time in the response (its 402 nonce deadline); prepaid credits are refunded. - Nothing here is investment, legal or tax advice.