the402 x402 endpoint directory

Convert CNY to USD at live rate. Pass ?amount=100 for value in US Dollar. 人民币兑换美元换算。人民元を米ドルに換算。Convertir yuan a dólar.

Read-only JSON-RPC against Ethereum, Base, Polygon, Arbitrum, or Optimism with built-in multi-endpoint failover - one

Look up US colleges by name via the Dept. of Education College Scorecard: state, out-of-state tuition, overall admissi

Top reported adverse reactions for a drug from the FDA FAERS database (openFDA), ranked by report count - a fast read

Combine several PDFs into one, in order. Body: {"urls":["https://…/a.pdf","https://…/b.pdf"]}. Returns the merged PDF

Confirm a USDC payment actually settled: given a tx hash (and network), returns whether it succeeded and the USDC tran

Search FDA medical-device recall / enforcement records (openFDA): recalling firm, classification (Class I/II/III), rea

Search FDA food recall / enforcement records (openFDA): recalling firm, classification, reason (allergen, contaminatio

Review a SQL statement before running it against production: a pass / warn / block verdict naming concrete risks (unbo

Recent FEMA disaster declarations for a US state (openFEMA): title, incident type, declaration type, and date - the fe

NHTSA safety recalls for a vehicle by make/model/year: campaign number, affected component, summary, consequence, and

Search FDA drug recall / enforcement records (openFDA): recalling firm, classification (Class I/II/III), reason, distr

Fetch an RSS 2.0, Atom, or RSS 1.0 feed URL and parse it into normalized JSON: feed title/description/link plus items

Search US federal election candidates via the FEC: name, party, office (House/Senate/President), state, incumbent/chal

Combine PNG/JPEG images into a single PDF, one image per page. Body: {"urls":["https://…/1.png","https://…/2.jpg"]}. R

A Farcaster user's recent casts by fid or username, newest first, optionally including replies or limited to one chann

Recent crypto headlines aggregated from the public feeds of major outlets, deduplicated and newest first, each with ti

Trending Farcaster channels ranked by casting activity over 1d, 7d or 30d, with cast counts for all three windows, fol

The options chain for a currency and expiry sorted by strike: bid, ask, mark, mark implied volatility, open interest,

Latest casts in one or more Farcaster channels (e.g. base, farcaster, ethereum), newest first, with optional replies.

Historical USD price series for a token, by ticker symbol (ETH, BTC, SOL, ...) or by ERC-20 contract + network, at 5-m

The whole crypto perp market in one call: advancers versus decliners, mean, median and volume-weighted 24h change, tot

AI-powered text translation between any languages. Powered by Claude AI. Send text and target language, receive a high

Upcoming fixtures and the game schedule for a major sports league, normalized to one cited JSON. Give a league such as

Get weather forecast (TAF) for a specific airport

Convert USD to CNY at live rate. Pass ?amount=100 for value in Chinese Yuan. 美元兑换人民币换算。米ドルを人民元に換算。Convertir dólar a yu

Viewport or full page, optional element selector, dark mode and cookie banner removal. Returns base64 image plus a sho

Viewport or full page, optional element selector, dark mode and cookie banner removal. Returns base64 image plus a sho

Bundled execution of the Timezone planner workflow - Time zone conversion, business day calculation, and cron schedule

Decode a 17-char VIN via NHTSA vPIC for $0.004 USDC with make/model/year and attribution. Call when you need this boun

Validate an IMO ship identification number check digit.

SSRF-safe public GET with status, headers, and size-capped JSON/text body for agent tool use

Resolve multiple DNS record types (A, AAAA, MX, TXT, NS, CNAME) in one call via DoH for deliverability and security ag

TLS peer certificate subject, issuer, expiry, and authorization status for a public host

Extract printed and handwritten text from a supplied image using OCR.

Relative strength index (RSI) for an asset slug.

Historical performance by day of week (avg return + win rate per weekday) over the lookback. Use to time entries/exits

Historical performance by calendar month (e.g. 'Uptober') — avg return and win rate per month. Use for seasonal positi

Historical volatility by hour of day (UTC) plus a session comparison — which hours move most. Use to time entries to a

Fetch a URL and return context already fitted to your token budget, with token counts and an omission manifest.

single-fact naics lookup. Complete for the bundled 2022 vintage: all 2129 NAICS 2022 codes at levels 2 through 6, titl

single-fact naics lookup. Complete for the bundled 2022 vintage: all 2129 NAICS 2022 codes at levels 2 through 6, titl

AiScale Data Extractor: Extracts structured data from a URL or raw HTML. Returns entities, facts, tables, and metadata

Solve the linear system A·x = b for a square coefficient matrix A and vector b via Gaussian elimination with partial p

Invert a square matrix via Gauss-Jordan elimination. A non-square, ragged or empty matrix is a clean 400. A singular (

Compute the determinant of a square matrix via Gaussian elimination with partial pivoting. A non-square, ragged or emp

Transpose a matrix, swapping rows and columns. A ragged/empty matrix is a clean 400.

Get weather forecast (TAF) for a specific airport

Simple moving average (SMA) for an asset slug.

Multiply two matrices A·B. The inner dimensions must agree (columns of A equal rows of B); a mismatch or a ragged/empt