the402 x402 endpoint directory

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Email enrichment and validation

Per-venue slippage scan for one crypto perpetual at $1K/$5K/$10K notional, across tracked CEX and DEX venues — every v

Historical 24h-volume timeseries for one crypto perpetual on one venue, aggregated 1h/4h/1d — liquidity over time for

Historical open-interest timeseries for one crypto perpetual on one venue, aggregated 1h/4h/1d — positioning over time

Historical per-venue funding rates for one crypto perpetual, aggregated 1h/4h/1d, across tracked CEX and DEX venues —

Honeypot check, half a cent: can this token actually be sold? Simulated buy+sell verdict, buy/sell/transfer tax, mint

European call/put fair value plus delta, gamma, theta, vega, rho from spot, strike, days-to-expiry, rate and volatilit

European call/put fair value plus delta, gamma, theta, vega, rho from spot, strike, days-to-expiry, rate and volatilit

One-call email verification for lead qualification and list hygiene: RFC 5322 syntax check, then a live MX lookup over

Official French company registry search via recherche-entreprises.api.gouv.fr (INSEE Sirene data, updated daily). Quer

Agent playbook to evaluate paid gigs. Takes payout, readiness, authority, spend, terms, evidence demands, and requeste

The x402 ecosystem thermometer: how many services and resources are listed in the public bazaar right now (cached hour

Domain registration data via RDAP (the structured WHOIS successor): registrar, creation/expiry dates, status, nameserv

Decodes a Vehicle Identification Number through the official US regulator's vPIC database (public domain): make, model

Active weather alerts from the US National Weather Service (NOAA, public domain, real-time feed). Query: ?area=CA (2-l

Monthly average interest rates the US Treasury pays on its outstanding securities, from the official FiscalData API (A

Circulating supply per stablecoin from DeFiLlama with computed net flows (delta_24h/delta_7d/delta_30d = net mint minu

Upcoming space launches worldwide from Launch Library 2 (The Space Devs): launch window (NET, window start/end), provi

Hourly sea-state forecast from Open-Meteo Marine wave models: wave height/direction/period, wind waves and swell, up t

Real-time oracle prices from Pyth Network (Hermes API): aggregate price, confidence interval (uncertainty band), EMA p

One merged call instead of two: latest-version metadata from the official npm registry plus last-week download count f

Who owns whom, from the official GLEIF LEI graph (CC0 licensed, covers 2.5M+ legal entities worldwide). Query: ?lei=54

Daily river discharge forecast from the Copernicus GloFAS model (5 km grid) served via Open-Meteo Flood API, data CC-B

Legal entity reference data from the GLEIF LEI golden copy (updated daily, CC0). Direct lookup: ?lei=529900FCMZ4LKXFD0

All currently active disaster events monitored by GDACS (European Commission JRC / UN OCHA, attribution CC-BY-style),

Official US Treasury Reporting Rates of Exchange: the legal USD conversion rates required for FBAR/8938 filings and US

Official risk register for any French commune from the GeoRisques GASPAR database (BRGM / Ministry of Ecological Trans

Official DPE energy certificates for existing French dwellings from the ADEME dpe03existant dataset (Licence Ouverte 2

Adds N French business days to a date (?start=2026-07-13&add=30) or counts them over a range (?from=2026-07-01&to=2026

Latest euro area risk-free spot yields from the ECB Data Portal (dataset YC, AAA-rated central government bonds, Svens

Live intra-EU VAT number validation via the European Commission VIES REST API (real-time query of the member state reg

Wholesale day-ahead electricity prices in EUR/MWh per European bidding zone, from the Energy-Charts API (Fraunhofer IS

Consolidated MiFIR reference data for one ISIN, from the official ESMA FIRDS register (updated daily). Query: ?isin=FR

Public holidays and school holidays with subdivision granularity (German Laender, French academies, Spanish communitie

Authoritative domain registration facts from the ICANN-mandated RDAP protocol (rdap.org bootstrap -> registry of recor

Base-image due diligence from the Docker Hub API v2: repository status, star and pull counts, last_updated with derive

Support/EOL schedule from endoflife.date (open data, ~350 products: python, nodejs, ubuntu, postgresql...) with derive

Gas prices on Base.

Validate if a phone number can receive SMS

Check SSL certificate for a domain

Scrape any public URL to clean markdown

Risk check for an EVM contract/token address

Discover RTP robots. Filter by capability, chain, price, status.

South African CPI (headline, YoY) (Latest Stats SA headline consumer inflation, year-on-year %, with reference month.)

South African Crypto ZAR prices (live): Live ZAR crypto prices from VALR's public market data: last traded, bid/ask, 2

Air quality API: current US AQI plus PM2.5, PM10, ozone, and NO2 for any latitude/longitude worldwide, from a global a

Air quality index API by coordinates: current US AQI, PM2.5, PM10, ozone, and NO2 for any lat/lon worldwide from a glo

South African Government tenders (live): Live South African government tender feed from National Treasury's eTenders O

South African SA sovereign credit rating (South Africa's current credit rating and outlook from Moody's, S&P Global an