the402 x402 endpoint directory

Look up an airport by 3-letter IATA (e.g. SFO) or 4-letter ICAO (e.g. KSFO) code. Query: code (3-5 chars, alphanumeric

Airports within a radius of a coordinate, sorted by distance. Query: lat (-90..90), lon (-180..180), radius_km (1-2000

List a repository's releases: tag, name, draft/prerelease flags, author, published time, and release notes body. Pagin

Search code across GitHub with the code-search syntax (e.g. 'defineEndpoint repo:AlleyFord/2s' or 'addEventListener la

Validate an International Bank Account Number (IBAN) with full ISO 13616 checks: country-specific length and the ISO 7

Fetch any URL and extract structured page metadata: title, description, og:image, canonical, favicon, site name, autho

Compute sunrise, sunset, solar noon, and civil/nautical/astronomical twilight times for a coordinate + date. Query: la

Validate an email address and return structured signals: RFC syntax validity (isSyntaxValid + reason if not), the norm

Audit whether a website can actually be read, quoted and cited by AI agents, and get a prioritised fix list. Probes th

Block-production concentration on the Animica L1 over the last N blocks: every producer with its block count and share

Deterministic mining P&L for Animica L1 at a named chain height. The per-block reward comes from the node's own live b

Fetch any URL and return its article content with the clutter stripped — nav, ads, sidebars, footers, scripts, styles,

Look up US healthcare providers in the CMS NPPES registry — the authoritative directory of National Provider Identifie

Give a URL and a question; get an answer grounded in that page, WITH the passages the answer was drawn from. We fetch

Competitive position for a single x402 resource. Give a URL that is listed anywhere in the merged index and get back w

Price positioning for an x402 service. Describe what you sell (and optionally what you charge) and get the comparable

Statistical analysis of any segment of the x402 economy, computed over a merged index of Coinbase Bazaar and 402index

Describe a goal and a budget; get back a concrete plan of real x402 calls that would accomplish it — exact URLs, HTTP

Emit the actual files that fix a site's AI legibility, ready to deploy: a real /llms.txt, a /robots.txt that stops exc

ERC20 token balance for any Ethereum wallet - USDC, USDT, DAI, or any token - via balanceOf (eth_call) on OneSource li

Live wallet balance - native ETH plus up to 20 caller-supplied ERC20 tokens in one bounded RPC batch

Total supply of an ERC20 or ERC721 token contract via totalSupply (eth_call)

Look up the current owner of an ERC721 NFT by token_id via ownerOf (eth_call)

ERC1155 token balance via balanceOf (eth_call) - how many copies of a token_id a wallet holds

ERC20 allowance via allowance (eth_call) - how much a spender is approved to move from an owner's wallet

Latest SEC EDGAR filings for any US-listed company by stock ticker or CIK: 10-K annual reports, 10-Q quarterly reports

TradFi macro intelligence: indices, VIX, DXY, treasury yields, commodities, and individual stock quotes with moving av

Premium alpha from top 50 crypto KOLs. Real trading signals, trending token picks, and sentiment from influencers who

Extract full text content from specific URLs. Priced at $0.002/URL — total = urls.length × $0.002.

Latest insider trades (SEC Form 4) for any US-listed company by stock ticker or CIK: who bought or sold, their role (d

Extract article / main content from any URL or PDF to clean, LLM-ready Markdown (web scraper / reader / html-to-markdo

Latest SEC EDGAR filings for any US-listed company by stock ticker or CIK: 10-K annual reports, 10-Q quarterly reports

Latest company news for a vendor-resolved equity: licensed Finnhub headlines from the trailing seven days with publica

Residential proxy fetch (up to 2MB). Returns HTTP 200 with the target body; read X-Target-Status for the origin status

USGS recent earthquakes worldwide (M2.5+)

Repair malformed JSON (trailing commas, single quotes, unquoted keys, code fences, truncated output) and optionally va

A tight 4-6 sentence crypto market recap an agent can ingest whole: overall direction and why, the 2-3 developments th

gpt-4o-mini API call (~128 tokens)

TradFi risk-on/risk-off in one $0.003 call for crypto agents. Returns the S&P 500 and Nasdaq-100 regime state, how man

Transcribe a YouTube video by URL on Venice, paid per request in USDC on Base via x402, no API key. Standalone — send

Current USD prices for any crypto asset: majors by ticker (BTC, ETH, SOL), anything else by CoinGecko id or chain + co

Current gas price and EIP-1559 fee suggestions (base fee, priority tip, suggested max fee) on Ethereum, Base, Arbitrum

US weather forecast API: official National Weather Service forecast for any US lat/lon — next four periods (~48 hours,

Look up a transaction and its receipt on Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain: status (success/re

Semantic vector cache: exact-match Map shortcut, then 0.88 cosine similarity on hash embeddings. Sub-10ms hits.

Verify an x402 settlement on Base OR Solana: pass a 0x transaction hash or a base58 signature, confirm it succeeded, d

Cryptographically-secure randomness with a receipt. GET ?bytes= returns hex (1-256 bytes); add ?min=&max= for a unifor

Daily US macro-regime snapshot from licensed Alpha Vantage series: 10-year Treasury yield, effective federal funds rat

Purchase and download the Broken Key Remapper software (one-time license).

SEC Form 4 insider trades for any US-listed company by ticker: who bought and sold (officer/director/10% owner), purch