the402 x402 endpoint directory

Resolves pool, price oracle and data provider through the protocol address provider rather than hard-coded addresses,

Walks the visible book of every requested exchange for the given size, in both directions, and works out what remains

Resolves a pool in a public yield directory by chain, protocol and pool id or symbol, then rebuilds the number a buyer

Read a picture, a scan or a screenshot: full text in reading order, typed blocks with their box on the page, tables as

Unified scientific literature search across arXiv (preprints), PubMed (biomedical), and Semantic Scholar (cross-field,

Real-time water data from USGS NWIS stream / river / groundwater gauges within a bounding box around lat/lon. Returns

Search the Federal Bureau of Prisons inmate locator — federal inmates from 1982 to present, both currently incarcerate

Validazione ufficiale in tempo reale di una Partita IVA europea tramite il registro VIES della Commissione Europea. Us

Google Maps search - returns map listings with titles, addresses, latitude/longitude coordinates, ratings, review coun

solar-position-oracle: Solar Position & Day Length Oracle – geocoded sunrise/sunset, declination, and UTC day-of-year

Detect whether an address is an EOA, generic contract, Gnosis Safe multisig, ERC20 token, ERC721 NFT or upgradeable pr

Current gas price across Ethereum, Base, Arbitrum, Optimism and Polygon in one call, returns gwei gas price and latest

Deep profile of any stablecoin - peg mechanism (fiat/crypto/algorithmic), circulating supply by chain, audit status an

US ground stops and ground delay programs from FAA: airports with active ground stops or ground delays, reasons and av

Perpetual funding rates for multiple coins in one call with extreme-rate flags signalling crowded positioning or fundi

Detect the largest recent transfers of a token to spot whale accumulation or dumping before price moves - a real-time

Search PubMed biomedical literature via NCBI and return article title, authors, journal, year, PMID and link for each

Check whether a crypto address appears on the US OFAC sanctions list before transacting - a compliance must-have for a

Live OHLCV candlestick data for any crypto symbol from OKX across timeframes (1m to 1w), with high/low/change summary

Live perpetual futures open interest for any crypto symbol from OKX - total outstanding contracts, a real-time positio

Current USD price of any token by chain and contract address (or coingecko id), with symbol and confidence, from a mul

Google Maps search - returns map listings with titles, addresses, latitude/longitude coordinates, ratings, review coun

Google Lens reverse image search - identify objects, find visually similar images, and get visual search results from

One page load answers everything an agent needs to reason about a page: the DOM after JavaScript capped at 2 MB, the C

Search the web and return matching documents with URLs and content.

Multi-chain portfolio API: USD-valued native + ERC-20 balances for one address across up to 23 EVM chains (incl. young

Multi-chain balances API: native + ERC-20 token balances for one address across up to 23 EVM chains (Ethereum, Base, A

Exa /search endpoint

Rewrite text in a requested tone (formal, friendly, concise, persuasive, etc.).

Rewrite text in a requested tone (formal, friendly, concise, persuasive, etc.).

APEX Runner: Btc Price Tick Signal

Create a MiniUp app from complete HTML supplied by an agent.

Exa /search endpoint

APEX Runner: Fg Micro Signal

Recent forced liquidation orders for any crypto perpetual from OKX, split by long/short - real-time liquidation cascad

Search state Secretary-of-State business registries, normalized to one schema across states. Currently supported: NY (

DeepSeek AI inference — pay in USDC/EURC on Base or USDC on Arbitrum

Historical weekly price series for a Stock Trends symbol.

Historical ST-IM forward return distribution series for a symbol. Use /v1/meta/stim for ST-IM provenance, base-period

List every ERC721 NFT token_id a wallet owns in a collection via tokenOfOwnerByIndex (eth_call)

NFT metadata, traits, and image URI for any ERC721 or ERC1155 token - fetched via eth_call with IPFS resolution (OneSo

Real-time aggregated cryptocurrency news feed with lexicon-based sentiment analysis and cross-outlet story clustering.

Check a watch condition by ID, returning whether it triggered and updating the caller-specific baseline.

Capture a screenshot of any public web page with a headless Chrome browser. Set the viewport, grab the full scrollable

Holt die genannten Quellen, zerlegt sie in Saetze und sucht die Fundstellen mit der hoechsten Begriffsdeckung zur Beha

Batch EU CBAM: liability for a portfolio of shipments in one call (1–100 shipments; a single live ETS price is shared)

EU CBAM liability: embedded emissions, free-allocation benchmark, certificates and EUR liability for an import by CN c

Currency exchange rate for converting between any two currencies (forex/FX rate), drawn from a set of 30+ major curren

Agent-native retrieval over x402 — send a query and, optionally, source URLs to index: get back ranked, cited chunks.

Keyless web search for agents: pass a query, get a concise web-grounded answer plus the top source results (title, URL