the402 x402 endpoint directory

Deterministic BIC/SWIFT check before an international payment: ISO 9362 structure (4-letter bank, 2-letter country, 2-

List supported RPC chains and methods.

Full list of official public holidays for one country and year, from the Nager.Date registry (100+ countries, legally

Current wall-clock time for any IANA timezone, resolved live by timeapi.io (IANA tz database, includes DST rules). Que

Offline validation of product barcode numbers: EAN-8, UPC-A, EAN-13 and GTIN-14, using the GS1 mod-10 weighted checksu

Postal code resolution for ~60 countries via Zippopotam.us (GeoNames data, CC BY 4.0). Forward: ?country=us&code=90210

Instant pre-validation of French company numbers before invoicing or costly Sirene API calls. Auto-detects SIREN (9 di

French address geocoding on the official Base Adresse Nationale (api-adresse.data.gouv.fr, Etalab/IGN, continuously up

Official French administrative reference from geo.api.gouv.fr (INSEE/IGN data). Look up communes by ?cp=31700 (postal

Recommended Bitcoin transaction fee rates in sat/vB (fastest, half-hour, hour, economy, minimum) from mempool.space, c

Ping - 0.001 USDC on Base

Current weather conditions by city or place name.

Integer → Roman numerals. Use for outlines, chapter labels, or display formatting in agent UIs. Returns a Roman numera

Roman numerals → integer. Handy for parsing outlines, clocks, or classic numbering in scraped text. Returns the intege

Domain from an email. Call when routing tickets, grouping users, or validating corporate domains. Returns the domain p

Host from a URL. Use to extract the host for allowlists, branding, or outbound policy checks. Returns the host/domain

Slug from a URL path. Call when turning docs or product URLs into clean route slugs or cache keys. Returns a slug deri

Count characters, words, and lines. Call before truncating prompts, validating SMS length, or estimating token budget

Agent fortune API: a fortune cookie written specifically for AI agents ('A cached response is worth two upstream calls

List all AI models on Bittensor. OpenAI /v1/models compatible. Drop-in: just change base_url to gateway.spraay.app/bit

Text statistics API: characters, words, sentences, average sentence length, Flesch reading-ease score, estimated readi

Text hashing API: SHA-256, SHA-512, SHA-1, or MD5 digest of any text, returned as hex — deterministic, instant, comput

Timezone converter API: convert a wall-clock time from one IANA timezone to another with daylight-saving applied corre

Color conversion API: any hex or rgb() color to hex, RGB, and HSL plus is-it-dark detection and the accessible text co

Macro regime classification (risk-on/risk-off/neutral)

HTTPBin Test Echo - a Sly-published x402 service running on Sly's gateway (api.getsly.ai). Used to validate the publis

Atomically write (or release) a key only if its current value equals `expected` — the coordination primitive for distr

CoinStats current Fear & Greed Index — sentiment score from Extreme Fear (0) to Extreme Greed (100)

x402 settlement test

All WNBA teams with ID, city, abbreviation, and conference. Use team IDs to query schedules and standings.

Current WNBA standings with wins, losses, win percentage, and conference rank.

WNBA game schedule for any date — matchups, scores, and game status. Pass a date to find games on a specific day.

All active WNBA players for the current season — name, position, jersey number, and team.

Current NHL standings — wins, losses, OT losses, points, and division rank across all 32 teams and 4 divisions.

All 32 NFL teams with ID, name, abbreviation, and city. Use team IDs to query schedules and standings.

Current NFL standings — wins, losses, win percentage, division rank, and conference rank for all 32 teams.

NFL game scores for any date — live and final scores during season, empty during offseason.

All active NBA players for the current season — name, position, jersey number, and team.

MLB ballpark details — city, state, capacity, and playing surface. List all 30 stadiums or look up one by venueId.

All 30 MLB teams with ID, city, abbreviation, and division. Use team IDs to query schedules, standings, and players.

Current MLB standings — wins, losses, win percentage, games back, home/away splits, and streak. Filter by leagueId: 10

Integer trivia lookup: give any whole number and get back whether it's prime, its full prime factorization, whether it

Returns "Hello World" after payment verification

Top DeFi yield farming pools ranked by APY across 500+ protocols and chains — pool, protocol, chain, APY, and TVL as J

Convert raw HTML into clean markdown. Typically cuts page tokens by 80-85% before they hit an LLM context window.

Generate a single-use Coinbase Onramp URL that lets a human fund any wallet with a card or Apple Pay — the fastest way

SHA-256 hash API for agents: hash text with SHA-256, SHA-1, or MD5 for $0.001 USDC and return a compact deterministic

UK street-level crime statistics by postcode (Police UK).

Lichess user profile snapshot: ratings per perf, country, title, online status, counts.

Secure random integers in a range for $0.001 USDC.