the402 x402 endpoint directory

Inspect up to 200 IP addresses at 0.0005 USDC per address.

Validates a 402 challenge — fetched from a URL without paying, or supplied directly — against PaymentRequiredV1Schema

Fetches the 402 challenge of a foreign endpoint without paying anything — no payment header, no signature, no settleme

Resolve a MIME type to its default file extension.

Returns a URL's status, latency, and header subset.

Capture a full-page (scrolled) PNG screenshot of an http(s) URL; returns a JSON envelope with the PNG base64-encoded u

Capture a PNG screenshot of a single CSS-selected element on an http(s) URL; returns a JSON envelope with the PNG base

Capture a viewport-sized PNG screenshot of an http(s) URL with headless Chromium; returns a JSON envelope with the PNG

Check notification delivery status.

Continuous load is the sum of the running watts of all appliances marked as simultaneous. The surge check adds the lar

Filtered search over the full SEC Form 4 insider-trade database: combine insider role (CEO, CFO, Director...), trade t

Register a golden test case that monitors an API endpoint for behavioral drift (compares live responses against expect

Probe a public HTTP endpoint without paying and decode its HTTP 402 payment requirements into clean JSON: status, netw

Reverse-DNS lookup for an IP: PTR record plus a best-effort list of other domains hosted on the same IP.

Extract structured elements: heading hierarchy (h1-h6), lists, tables as 2D arrays, and images with alt text, plus ele

Market rankings with price, volume, market cap — filterable by category

List registered webhooks.

Payroll stablecoins.

List scheduled jobs.

Supported bridge chains.

Takes two documents, by URL, inline base64 or raw text, extracts the text of each and compares them. Paragraphs are th

Two checks in one. First the arguments are validated against the tool input schema and every violation is reported wit

OpenAI-compatible chat completion (fast tier). Streaming supported.

Assess an x402 counterparty before paying. POST {target:{payto_address}, payment_context?, policy?}; payto may be a 0x

Verify AI agent outputs against a VEO-2 schema. Checks structural validity, SHA-256 hash integrity (if content hash is

Translation tuned for skilled-trade work: HVAC, refrigeration, electrical and construction terms stay correct instead

AgentWorld Live NPC Voices - real-time soul-engine dialogue from 92 autonomous AI agents. Personality-matched, memory-

Instruction-tuned mixture-of-experts model for high-volume work: classification, extraction, summarisation, routing an

Any URL to LLM-ready markdown — main content extracted (Readability), boilerplate stripped. $0.002 per page in USDC (x

Buyer-side payment firewall: should THIS agent make THIS payment now? Where /api/assess vets the seller, this vets the

Token/asset metadata — name, symbol, decimals, chain info

Takes a kind 9735 receipt directly or fetches it from relays by event id, then runs eight named checks and reports eac

Accepts three forms of recipient. A bech32 lnurl is decoded to its callback URL, a Lightning address is resolved throu

Fetches the feed over https with redirect and size limits, recognises RSS 2.0, RDF and Atom, and converts each entry i

Give it a search window, a meeting length, and for each participant a list of busy blocks — start and end, nothing els

Opens a TLS connection and reports the chain the server presents. Per certificate: subject and issuer, validity window

Calculate entropy and randomness characteristics of supplied data. Useful for Shannon entropy measurement, randomness

Subtracts exported energy from supplied site energy, divides by conditioned floor area and selects the first caller-su

Sums non-negative eligible balances and allocates a caller-supplied pool by balance share. It performs no transfer, wa

Computes the observed germination rate and a Wilson score interval from germinated and tested counts using a supplied

Requires shares totaling exactly 10,000 basis points, floors each proportional minor-unit allocation, and distributes

Counts zeros, ones and runs, reports a normalized monobit imbalance, and compares observed runs with the IID Bernoulli

Interpolates a caller-supplied start and end temperature across a bounded number of steps using either a linear or geo

Maps a caller-supplied Kp value to conventional G0–G5 bands, maps Dst to declared disturbance bands, and combines seve

Sorts caller-supplied non-negative balances and computes the standard finite-sample Gini coefficient plus top-one and

Tokenizes caller-supplied text and counts matches against a small declared English/German unigram lexicon. It reports

Sorts unique scalar key/value entries through canonical JSON serialization and computes SHA-256. It verifies byte-leve

Canonicalizes device_id, nonce and message, computes an HMAC-SHA256 tag with caller-supplied ephemeral key material, a

Get URL and web page metadata including title, meta description, canonical URL, Open Graph metadata and Twitter metada

Same input as /api/assess, but returns a trimmed action-oriented view: the allow/limit/deny decision plus a wallet-rea