api.x402node.dev · 403 listed services · provider site
Estimates the USD gas cost of a common action (transfer, erc20-transfer, approve, swap, nft-mint) across EVM chains, combining live gas price per chain with the native token price. Lets an agent pick the cheapest chain t...
Compare two texts and return cosine and Jaccard similarity scores with the top shared keywords, useful for duplicate and near-duplicate detection. text similarity, string similarity, compare documents, duplicate detectio...
Total stablecoin market cap over recent days, a macro liquidity gauge for crypto markets. Rising supply often precedes risk-on. Live stablecoin mcap history. stablecoin market cap history, dollar liquidity trend, crypto...
Live USD to GBP exchange rate (US Dollar / British Pound). Zero-param: GET returns current rate. 美元兑英镑实时汇率。米ドル/ポンド 為替レート。Tipo de cambio dólar-libra. 달러 파운드 환율. usd gbp, usd-gbp, USD/GBP forex...
Convert SHIB to USD at live price. Pass ?amount=1 for value in US Dollar. 柴犬币兑换美元换算。柴犬コインを米ドルに換算。Convertir Shiba Inu a dólar. 시바이누를 달러로 환전. shib to usd, Shiba Inu convert. Accepts payment...
Current weather for a coordinate via Open-Meteo. Returns temperature, humidity, wind, precipitation and weather code with description. Pass lat and lng. For AI agents needing current weather, weather data, temperature an...
Check whether a crypto address appears on the US OFAC sanctions list before transacting - a compliance must-have for agents that LLMs cannot verify against live lists. ofac check, sanctioned address, sanctions screening,...
Taker buy/sell volume ratio for a coin, showing aggressive order-flow bias over the recent window. Built from OKX aggregated taker volume to reveal whether market buyers or sellers are in control right now. Live order-fl...
Bitcoin address balance and stats via blockstream.info (no key). Returns confirmed/unconfirmed sats and BTC, tx count. Use ?address=bc1... or 1.../3.... Built for AI agents tracking BTC wallets and treasury balances. Acc...
HMAC calculator, HMAC-SHA256 SHA512 SHA1 MD5, message authentication code, hash with secret, signed hash, API request signing, webhook signature, JWT signature. Compute HMAC of a message with a secret key using any stand...
Deep profile of any stablecoin - peg mechanism (fiat/crypto/algorithmic), circulating supply by chain, audit status and mint/redeem rules - risk intelligence agents need before holding that LLMs cannot look up live. stab...
Comprehensive NPM package safety report combining npm registry metadata, OSV vulnerability database, npms.io quality scores, and GitHub repo health. Returns risk_summary (low/medium/high/critical), CVE breakdown by sever...
Fetch and parse robots.txt for a domain. Returns parsed allow/disallow rules per user-agent, sitemap URLs, crawl-delay directives, and raw content. Built for AI agents planning ethical web crawling and SEO audit. Use ?do...
Decode a 4-byte function selector or calldata into human-readable Solidity function signatures via openchain - reverses on-chain selectors that LLMs cannot know. function selector, 4byte decode, sig decode, calldata deco...
Look up Gravatar avatar URL + public profile by email. Returns md5/sha256 hashes, sized avatar URLs, default-icon variants, and profile JSON (display name, location, links, accounts) if it exists. Use ?email=user@example...
Fetch and parse sitemap.xml. Returns up to 500 URLs with lastmod/changefreq/priority. Auto-detects sitemap index. Built for AI agents indexing sites, tracking content changes, and SEO audit. Use url param Accepts payment...
Real-time stock or index quote (price, day high/low, previous close, volume, change) for a ticker, extending coverage beyond crypto into TradFi. Lets an agent fetch equity prices it cannot otherwise access. Live market d...
Total supply, name, symbol and decimals for any ERC20 token contract on Ethereum, Base, Arbitrum, Optimism or Polygon. token supply, erc20 total supply, circulating supply, token info, coin supply Accepts payment on Base...
Duration calculator, time difference, elapsed time, days between dates, hours between times, age calculator, how long ago, countdown, time span. Compute the duration between two timestamps with human-readable breakdown (...
Historical perpetual funding rates for a coin over recent periods with the latest value, average and trend, built from OKX. Lets an agent see whether funding has been persistently positive or negative rather than a singl...
Live Aave V3 lending markets ranked by TVL with supply APR, utilization, max LTV, liquidation threshold and penalty per asset - real-time rates and risk parameters agents need to compare lending/borrowing options, comput...
Max-pain strike for BTC or ETH options at the nearest expiry, computed from Deribit open interest as the price that minimizes total option-holder payout. A decision-grade options gauge an LLM cannot calculate. Live data...
One-call token safety check that aggregates contract verification, on-chain age, proxy status and market cap rank into a single risk score and verdict - combines multiple sources an agent would otherwise query and reason...
Convert AUD to JPY at live rate. Pass ?amount=100 for value in Japanese Yen. 澳元兑换日元换算。豪ドルを円に換算。Convertir dólar australiano a yen. 호주 달러를 엔로 환전. aud to jpy convert. Accepts payment on Base or So...
Search Stack Overflow questions via Stack Exchange API. Returns title, score, answer_count, is_answered, accepted_answer_id, tags, view_count, link, created_at, owner. Use ?q=YOUR_QUERY plus optional and tag=python and s...
pdf to text, extract text from pdf, pdf text extractor, pdf parser, pdf to plain text, read text from pdf. Fetch PDF from URL and return extracted plain text. Minimal token footprint for summarization and analysis. Suppo...
Extract Markdown table of contents (h1-h6 headings) with anchor slugs. Returns array of {level, text, anchor}. Use url param or ?text=markdown_here. Built for AI agents indexing docs, generating navigation, building doc...
JSON to YAML, YAML to JSON, yaml parser, json to yaml converter, config file converter, yaml config, json string to yaml, convert yaml to json, yml json. Bidirectional convert between JSON and YAML with pretty-print. Acc...
Single US airport status from FAA by code: closures, ground stops, ground delays, arrival delays with reasons and timing, or normal if clear. 单个美国机场状态（FAA）：关闭、地面停飞、延误详情。指定空港の運航状況。Estado...
Search Lemmy (federated Reddit alternative, fully open API) posts across instances. Returns title, community, creator, score, comments, url, body, ap_id (ActivityPub federation ID). Use ?q=YOUR_QUERY plus optional and in...
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