the402 x402 endpoint directory

Pre-sign safety verdict for an off-chain EIP-712 signature (EIP-2612, Permit2, EIP-3009). Decodes what it authorizes (

Resolve one research paper and fuse its metadata across OpenAlex, Crossref, Unpaywall and Semantic Scholar into a sing

One indicator compared across several countries: the latest value for each plus computed signals — rank, highest and l

A curated headline basket of key macroeconomic and development indicators for one country: GDP, GDP per capita, growth

Adverse-event summary for a medical-device brand from the FDA MAUDE database. Returns counts of malfunctions, injuries

Drug-interactions label section for a drug by name, with an optional check of whether the label mentions a second drug

Adverse-event summary for a drug from the FDA FAERS database by name. Returns the top reported reactions, the serious

Vulnerability scan for a software package by ecosystem, name and version, or by package-URL (purl). Queries OSV.dev fo

Compare several US geographies on one real-estate metric: price momentum, gross rental yield, price to income, median

US crop production, yield, acreage and grain stocks from USDA NASS QuickStats by commodity, with an optional state and

Screen a US healthcare provider against the OIG LEIE federal exclusion list. Exact NPI match returns an authoritative

Product recall and safety check for a consumer good, food, drug or medical device by brand or product name. Fuses CPSC

Fit-to-haul verdict for a US motor carrier from FMCSA registration data. Give one of dot, mc or name and get a verdict

US property/location natural-hazard risk profile: FEMA National Risk Index composite (18 hazards, expected annual loss

Find US proposed rules and rulemaking dockets by docket id, keyword or agency: documents, comment period, public-comme

Look up one US federal bill by id: title, sponsor, cosponsors, committees, policy area, full action history and comput

Verify a business is real and get a legitimacy verdict plus a 0-100 risk score. Give one of name, lei, cik, ticker, is

Key financial ratios computed from SEC EDGAR XBRL: margins, liquidity, leverage and growth. Give a ticker or CIK and g

Composite rug-check risk score for an ERC-20 token: a 0-100 score, a category (low/medium/high/critical), per-dimensio

Resolve one legal entity across three public registries from a single identifier. Give exactly one of name, ticker, ci

Live US mortgage and macro rate snapshot. Returns 30-year and 15-year fixed mortgage rates, the prime rate, the fed fu

Structured page extraction — clean markdown plus extracted links and headings as structured data, via managed retrieva

Batch page fetch — read up to 5 URLs in one call and return clean markdown for each, via managed unlocking with reside

Composite smart-money score (0-100) for any trader wallet - combines realized profit, ROI and trading scale into one r

Amazon product page fetch — title, price and details as they appear, via managed retrieval that handles bot protection

LLM completion per call on a stronger model, no account needed: POST a prompt or messages array, get the answer as JSO

Fetch a live https URL and score whether the deploy is actually there. POST {"url":"https://your.site","min_score":80}

China A-share single-stock money-flow: main-force (institutional) net inflow over recent sessions, with net amount, ma

Read any web page as clean, LLM-ready markdown — managed unlocking with residential IPs, IP rotation, automated CAPTCH

A-share daily limit-up board review. Aggregates today's limit-up stocks with consecutive-board ladder (streak height),

Generate an image from a text prompt at a flat price per picture, no token math and no subscription: the OpenAI images

OpenAI Responses API over x402 - point the OpenAI SDK's responses.create() (or the OpenAI Agents SDK) at base_url http

Loudness-normalize any audio/video URL to a target LUFS with ffmpeg's loudnorm (EBU R128) and return MP3 - consistent

Crawl a website from a starting URL and return each page as clean markdown: breadth-first over internal links, bounded

Anthropic Messages API over x402 - point the Anthropic SDK (or Claude Code / the Agent SDK) at base_url https://agent4

Extract/convert the audio track of any media URL (mp4, mov, wav, m4a, ogg…) to MP3 - the "mp4 to mp3" conversion, dete

Live video search: ranked video results (title, video page URL, description, duration, creator, publisher, thumbnail,

Web search that returns READY-TO-USE grounding text, not links: for one query you get the passages an independent sear

Execute Python or JavaScript code in a secure, isolated cloud sandbox. Returns stdout, stderr, and the expression resu

Live image search: ranked image results (title, source page, image URL, thumbnail URL, dimensions) from an independent

Validate up to 50 addresses in one call and say how precisely each actually matched — rooftop, street, locality, regio

Search EDGAR filing text for any phrase with form and date filters — returns matching filings with filer, date, items

Only E.O. 12866 significant federal rules and proposed rules — the OIRA-reviewed, economically major subset — newest f

Final federal rules taking effect within the next N days, sorted by effective date with exact day-counts, optionally o

Every federal rule and proposed rule published on one date, significant documents sorted first, with deadline flags an

Proposed federal rules whose comment window closes within N days, sorted soonest first with exact day-counts — the act

Registration statements withdrawn in the last N days (RW and AW filings), newest first with issuer and filing links —

Get the US federal money trail for a technology term — returns USAspending obligations by fiscal year with 3y growth,

Cheapest way to buy a whole grocery list in a US ZIP: best single store plus the cross-store optimum, with savings, st

Get an Amazon seller profile by seller id or seller URL: seller name, star rating, business name and address, and rece