Space-weather forecast — normalized one-to-three-day NOAA SWPC geomagnetic Kp-index per…
Space-weather forecast — normalized one-to-three-day NOAA SWPC geomagnetic Kp-index periods labeled observed, estimated, or predicted.
7,295 resources accept payment on this network. eip155:137
Space-weather forecast — normalized one-to-three-day NOAA SWPC geomagnetic Kp-index periods labeled observed, estimated, or predicted.
US Treasury yield curve — constant-maturity market yields from 1-month to 30-year, daily history.
Official public holidays by country and year, with regional subdivisions, localized names and normalized dates.
Add business days while skipping weekends and full-day Public or Bank holidays; Optional and HalfDay observances are retained.
Verifiable Random shuffle — a uniform Fisher-Yates permutation bound to a future drand round the server waits for (typically 3-6s) and verifies locally, with original in…
Timezone converter — resolve civil-time daylight-saving (DST) folds or gaps and convert one local time between IANA zones.
Weighted interval scheduling solver — exact maximum-weight compatible job scheduling with half-open intervals and a complete dynamic-programming certificate.
Identicon generator — turn an exact UTF-8 seed into a deterministic mirrored avatar returned as base64-encoded SVG or PNG in JSON.
Keccak Merkle proof verifier — validate inclusion plus exact leaf index and count proof shape for the Atlas sorted-pair tree profile.
JSON Web Key (JWK) inspector — validate bounded public RSA, EC, or Ed25519 keys and calculate RFC 7638 SHA-256 thumbprints without ownership or trust claims.
Boolean pre-flight check for L2 transaction safety across all 12 chains (?chain= param, default: base). Returns safe=true/false with reason code. Revert ratio data avail…
Is the stock market open right now? Deterministic market-status and trading-hours for the major global exchanges — NYSE, NASDAQ, LSE, Xetra, Euronext, TSE/JPX, HKEX, SSE…
Check the status and tracking of a physical letter previously sent via POST /api/letters. Returns render status, expected delivery date, and (for certified mail) the USP…
Check the status and tracking of a physical letter previously sent via POST /api/letters. Returns render status, expected delivery date, and (for certified mail) the USP…
Fetch any public web page or JSON API and get its status, content type, headers and body back. For agents that need to read a page they cannot reach themselves. Private…
Search the live web and get ranked results back: title, URL and snippet for each hit, up to 20 per call, optionally biased to a country. The natural first step before fe…
Euro foreign-exchange reference rates from the European Central Bank for 30 currencies - USD, GBP, JPY, CHF, TRY, CNY, INR, BRL and more - with cross-rates derived throu…
A deliberately cheap paid call, for checking that your wallet, network and x402 client actually work against this gateway before you spend more on a real product. It set…
eBay listings search — live prices, condition, shipping, seller reputation, auctions & Buy It Now across supported regional eBay sites, with category, price band, condit…
RFC 3986 percent-decode an input string back to its original text (%20 to space, %2F to /). Reverse of url-encode.
Cheap generic EVM reads on Base for AI agents: native balance, nonce, contract code, ERC-20 token balance, eth_call, gas price, latest block, and transaction/receipt loo…
Convert any string into a URL slug: ASCII, lower-cased, dashes for separators. For permalinks, filenames and stable ids.
Financial identifier validation: IBAN validation (format, length per country, mod-97 checksum), IBAN repair suggestions for OCR errors, EU VAT number format validation.…
Convert CSV text (first row = headers) into a JSON array of row objects. Parse spreadsheets and exports into structured data.