x402 merchant readings by XRPL address (GET /v1/merchant/{r-address}): payments and unique payers in the last 24h from our own XRP Ledger scan, payer mix, account age, first funder and Domain field, endpoint liveness and 402 status, plus a modeled 0-100 summary score (a measurement, not advice). Ea…

Ranked DEX pools for Solana, Base and Ethereum: normalised price, market cap, liquidity, buy/sell volume, price change and holder forensics (top-10, sniper, insider, bundle, dev). Filter by liquidity, market cap, volume, trades, holders and top-10 concentration; sort by tradeCount, priceChange or createdAt. Numeric output, no RPC or token decimals to handle.

Readings first, for one data source's published terms page (GET /v1/permission-audit/{source_id}): terms URL, whether we could fetch the page, last check time and SHA-256 of the page. Then our record of what those terms say about display, paid readings and resale of its data: permission class, allo…

Retrieve one public C3 community fraud report by its report ID.

Is this exact sentence on this public page? verbatim / paraphrase / stitched / not_found / unreachable, with an Ed25519-signed receipt logged in a public, witnessed, append-only log.

Exact cost to unstake from a Bittensor subnet right now, from the chain's own swap simulator: TAO received, cost in TAO and percent. Give alpha (amount of alpha) or tao (position value in TAO).

Repair almost-JSON produced by LLMs: strips markdown code fences, normalises smart quotes, removes comments and trailing commas, then parses. Returns the parsed value plus the list of repairs applied, or a precise parse error. Pure computation, no upstream data.

Domain and email security check: SPF, DKIM, DMARC, MX, MTA-STS, TLS-RPT, DNSSEC (validated by Cloudflare and Google), CAA, BIMI with its mark certificate, mail IPs on the UCEPROTECT Level 1 blocklist, TLS certificate, registrar and domain age, and Microsoft 365 tenant, each graded with the exact record to fix it, plus a 0-100 score

Readings across one AI model category in the models.dev catalog (GET /v1/models/category/{name}; name one of reasoning, coding, vision-input, image-output, audio, retiring-soon, price-moved, free-tier): counts, 24h price changes, new and removed models, deprecated listings, vendor status-page distu…

Exact DEX prints for a pool: side, price, USD/token/quote amounts, maker, tx hash and bot label. Filter by minimum USD, maker, time range and side; return oldest or newest first, up to 500 prints. Complements the OHLCV route for backtests, wash-trade checks, copy-trade research and transaction-level audits.

Domain registration check: registrar (name and IANA ID only), creation, expiry and last-changed dates, status flags, DNSSEC delegation and nameservers from the registry's RDAP, graded pass/warn/fail for newly registered, expiring or held domains

What changed on the x402 Bazaar since a time (since=, default 24 hours): which verified ERC-8004 sellers were paid on Base, by how many wallets and how many new ones, each with the owner agent's verdict and cost, live from onchain USDC; plus listings that appeared, left or changed terms. Call it daily instead of paying every new listing once. Counts are observed, never a promised return.

Domain and email security check: SPF, DKIM, DMARC, MX, MTA-STS, TLS-RPT, DNSSEC (validated by Cloudflare and Google), CAA, BIMI with its mark certificate, mail IPs on the UCEPROTECT Level 1 blocklist, TLS certificate, registrar and domain age, and Microsoft 365 tenant, each graded with the exact record to fix it, plus a 0-100 score

Reads one public web page and returns its title, description and main text as Markdown (headings, links, lists), plus link counts. Reads only the page you name: no crawling of other pages, no JavaScript rendering, so pages that build their text in the browser may come back short.

Unpaywall open-access lookup by DOI (free API; it requires a contact e-mail set in UNPAYWALL_EMAIL, not a key): is the paper open access, OA status, best free full-text link, journal and publisher. Returns metadata and links only, not the PDF.

TechCrunch latest articles from its public RSS feed (keyword filter on title/summary/tags). Headlines and excerpts only. Public feed, no key.

Supplier what-changed report: send a vendor domain; get a fresh snapshot, every field that changed since the previous stored check with before/after values and a high/medium/low severity, a one-line summary, and the last recorded changes for that domain. Use it before paying or re-ordering from a supplier. Public signals only. Uncharged if a data source is down. $0.01 USDC per call on Base.

Supplier re-check: send a vendor domain; get a fresh public snapshot (site up/down and redirect host, registrar, registry status, DNS, MX/SPF/DMARC, trust verdict) and whether anything changed since the last stored check. Use it on a schedule for suppliers you depend on; call vendor-what-changed for the full diff. Uncharged if a data source is down. $0.005 USDC per call on Base.

Quick company check: send a name and website; get site reachability, RDAP domain age, MX/SPF/DMARC and a name-vs-site match, with a pass/review verdict. $0.008 USDC per call on Base.

Run up to 10 primitive calls in one round trip. One x402 payment of $0.40 (=$0.04 per call, 20% off the single-call price). Each request specifies an `endpoint` (normalize, validate, extract, redact, classify, dedupe, diff, chunk, extract_custom, validate_json, slugify, hash) and the input for it; the response carries 10 results in the same order. Single-call batch — no streaming.