the402 x402 endpoint directory

Detect JSON, JWT, Base64, hexadecimal, and URL-encoded payload forms without executing code.

Run 1 to 12 deterministic encoding, decoding, JSON, or hashing operations in sequence.

Resolves A, AAAA, MX, NS, TXT, CAA and SOA, reads the WHOIS record of the responsible registry, checks SPF, DMARC and

One HTTP request per host, matched against an in-house signature set. Every hit carries a confidence value from 0 to 1

One HTTP request per host, matched against an in-house signature set. Every hit carries a confidence value from 0 to 1

Resolves A, AAAA, MX, NS, TXT, CAA and SOA, reads the WHOIS record of the responsible registry, checks SPF, DMARC and

Returns latest crypto news headlines from major outlets.

Foreign-exchange rates for 30+ fiat currencies (ECB reference data). Query: base (3-letter code, default USD), symbols

Is this chain alive: TVL trend over 1y/6m/90d/30d

Generate a QR code image from text or URL

Validate an IBAN by country length and ISO 7064 mod-97 checksum, returning the normalized form.

Search OSHA citation / violation records via US Department of Labor Open Data Portal (~13.2M citations). Each citation

Validate a GTIN-8/12/13/14 barcode number by GS1 mod-10 check digit and report its format.

Registrar, creation and expiry dates, status codes, nameservers and DNSSEC state for a domain, from the authoritative

Current temperature and wind for a city from Open-Meteo (live forecast data)

https://x402.openwebninja.com/website-contacts-scraper/scrape-contacts

Repair malformed, invalid, or broken JSON-like text and return valid parseable JSON when recoverable. Useful for fixin

Searches local business data by query.

Rank aggregate agent-demand gaps with bounded, privacy-safe evidence.

Distance in meters and initial bearing in degrees between two WGS-84 coordinate pairs.

China pulse, cheap enough to POLL: what China is talking about RIGHT NOW and what is NEW since your last call - built

Current weather conditions for any coordinate worldwide. Pass lat + lon (and optional units=metric|imperial, default m

US inflation calculator — cumulative CPI inflation between any two years, e.g. what $100 in 1990 is worth today (?from

GPT-5.6 Luna — fast, low-cost frontier model (Artificial Analysis Intelligence Index 51.2, GPQA Diamond 91.1%). Best f

The most recent bulletin from each NOAA tsunami warning center, with its category (warning, advisory, watch or informa

Every tropical cyclone the National Hurricane Center currently has advisories out on, with position, intensity, Saffir

Current NOAA G, S and R space weather scale levels with the three-day forecast probabilities.

Latest wind, wave height, water temperature and pressure reading from a NOAA data buoy, each field timestamped with th

Classifies the change between two versions as major, minor, patch, premajor, preminor, prepatch, prerelease or none, w

The FDA NDC Directory record for a package or product National Drug Code: brand and generic name, labeler, dosage form

Normalize a free-text US street address into its USPS-style standardized one-line form plus parsed components: house n

Look up the RxTerms prescribing form of a drug by RxCUI or name: display name, brand name, strength, dose form and rou

Parses a BCP 47 language tag into language, extlang, script, region, variant, extension and private-use subtags, valid

Whether a CVE is in CISA’s Known Exploited Vulnerabilities catalog, with the date added, the federal remediation due d

The state-level sales or use tax rate for a US state, with optional tax and total for a subtotal. Excludes county, cit

The European Central Bank's daily reference rate between two currencies, for the latest working day or a historical da

Resolve an LEI code to its GLEIF record: registered legal name, addresses, jurisdiction, legal form and registration s

RFC 5322 syntax check, live MX resolution and a disposable-provider check for one email address, in a single call.

The National Weather Service office, grid X/Y, timezone, forecast and county zones and radar station for a US coordina

The 15-digit census block FIPS code containing a US coordinate, with its county and state codes and the block bounding

Resolve a DOI to bibliographic metadata: title, authors, journal, dates, abstract, licence, funders and citation count

Decodes a VIN into make, model, model year, trim, body class, engine, drivetrain and assembly plant using the NHTSA vP

Full nutrition facts for one FoodData Central item: every reported nutrient with its amount and unit, plus serving siz

Validate an EU VAT number against the European Commission VIES registry, returning validity and the registered trader

Converts an amount between currencies at the European Central Bank daily reference rate, for the latest publication or

The current authoritative text of a Code of Federal Regulations section, as plain text with its heading and citation.

Resolves a stock ticker to the SEC central index key and registered company name.

Estimate CO2e for fuel burned, electricity used, freight moved or a trip taken, using published US EPA emission factor

Answer whether one date is a public holiday in one country, with its name, regional scope and the next holiday that ye

Geocode a US street address and return the matched address, coordinates, and its Census tract, county and state codes