the402 x402 endpoint directory

Price, market cap and volume series for a coin over an ARBITRARY time window: `from`/`to` as unix seconds or ISO dates

OHLC candles for a coin: days 1 (30-min candles), 7 or 14 (4-hour), 30 / 90 / 180 / 365 (daily), in any vs currency. R

MCPFax credit grade, subscores, confidence, and cited evidence

Raw C2PA manifest-store dump for a media file, with no verdict wrapper. Returns every manifest in the provenance chain

Fetch just the ABI of a verified EVM contract, resolving a proxy to its implementation ABI as well. A cheap slice for

Static security scan of a SINGLE CI/CD job or step snippet (GitHub Actions, GitLab CI or CircleCI). The lightweight pe

Look up one normalized model record by name or short alias such as sonnet or 4o. Returns per-million input and output

Version-delta changelog for a library between two versions. Give an ecosystem, package name and from_version and to_ve

Working code snippets for a library, matched to a topic. Give an ecosystem, package name and a topic or symbol and get

Fetch one federal R&D award as a normalized record with its full abstract. Give the award identifier and its source (N

The single next token unlock for one crypto token, cheapest actionable signal. Give a ticker, name or slug and get jus

Supply facet for a stablecoin: total circulating supply plus the per-chain breakdown from DefiLlama, cross-checked aga

History of US bank failures and assisted acquisitions from the public FDIC failed-bank list. Filter by bank name, FDIC

Search US FDIC-insured banks by name and get ranked candidate institutions, each with its FDIC certificate number, act

Search FDA-regulated manufacturers in the public FDA establishment records by firm name and get ranked facility candid

A Snapshot space's config and context so an agent understands the voting RULES: name, about, network, token symbol, st

Normalized votes on a Snapshot proposal, ordered by voting power: voter address, resolved choice label, voting power,

Screen a US college or university name against the federal DAPIP database: fuzzy name search returning ranked institut

File-hash reputation and known-file context for a SOC or DFIR agent. Give an md5, sha1 or sha256 hash and get CIRCL ha

RPKI Route-Origin Validation for an IPv4 prefix and origin AS, computed per RFC 6811 from the bulk Validated ROA Paylo

Resolve a financial professional or firm name to ranked CRD candidates for disambiguation before an authoritative veri

Search US employers in the public OSHA enforcement records by establishment name and get ranked candidates, each with

Visa requirement for a passport and destination pair from a community visa-matrix. Returns the normalized requirement

Resolve a US nonprofit name to ranked candidate organizations, each with EIN, name, city, state, decoded NTEE, subsect

Crisp authoritative IRS tax-exempt status for a US nonprofit by EIN: whether it is currently tax-exempt, listed in Pub

Bank account / IBAN verification in one call: ISO 13616 checksum + per-country structure validation, BIC / bank name /

Deterministic Farcaster social-reputation score from zero to one hundred for a fid, username or address. Combines acco

Resolve a Solana validator identity pubkey to its vote-account (or the reverse) and optionally get the top-N lowest-ri

US take-home paycheck estimate: federal income tax plus payroll tax and an optional state estimate, giving net pay per

Locate a free open-access PDF for a DOI. Returns whether an open-access copy exists and the best PDF link with its lic

Current FDA drug-shortage records for a generic drug name: status, therapeutic category, dosage form, company and date

Notarize a public URL: we fetch it ourselves and return a signed snapshot (final URL, HTTP status, content-type, sha25

Search US motor carriers by name in the FMCSA Company Census and get ranked candidates, each with its USDOT number, MC

Profile a US federal agency's procurement in one call: reported obligations and outlays plus top vendors, top NAICS an

FEMA flood-zone lookup for a US point: Special Flood Hazard Area flag, FEMA flood zone (such as AE, VE, X), zone subty

Screen a company name against the GLEIF business registry: fuzzy name search returning ranked candidates, each with it

Static application-security scan of a single code blob for CWE Top-25 logic bugs (SQL injection, XSS, command injectio

Peg facet for a stablecoin: current price, the absolute deviation from the one-dollar peg, a coarse depeg status of st

The pages a site publishes, from its sitemap, located via robots.txt then the conventional path, with last-modified da

Bundled execution of the Contact verification workflow - Verify an email address is deliverable - syntax validation pl

Bundled execution of the Agent wallet readiness check workflow - One call answers 'can this wallet pay right now?' - U

Fetch a web page and return its readable text with scripts, styles, navigation and markup stripped, plus title and met

Structured data extraction returning typed JSON from 17 specialized site extractors: Twitter/X, GitHub, CoinGecko, Hac

Inflation calculator — Adjust an amount between years using CPI (any country, not just US).

MCPFax markets — Polymarket market + order book (polymarket_market). Price: $0.002 USDC per call on Base.

NAICS lookup — Official 2022 NAICS code → title, hierarchy, children; or keyword search.

Nearest airports — Coordinates → nearest airports (IATA/ICAO) by distance.

Every hyperlink on a page as absolute URLs with anchor text, flagged internal or external. Capped at 300.

Know-your-agent payer graph and coverage-gated screening signals

MCPFax markets — DeFi yield pools (defi_yields). Price: $0.002 USDC per call on Base.