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MARKET MONITOR / CATALOGUE Services 86,883 MCP listed 39,685 x402 47,214 Rails Base / Solana / Polygon / Arbitrum Imported 2026-10-26 · 3 sources
Provider

factstamp.agentrails.workers.dev

factstamp.agentrails.workers.dev · 9 listed services · provider site

Citation x402 REST usage

Check a citation before repeating it. Give a DOI, an arXiv ID or a paper title; the answer says whether the work exists, what it is (title, authors, year, container) and whether it has been retracted. A title that is abs...

factstamp.agentrails.workers.dev Search & Research 6 calls / 30d checked 2026-10-26
0.02 USDC per call per call

Entity x402 REST usage

Verify whether a legal entity exists and is currently registered, from open primary registers: the GLEIF LEI index, US SEC EDGAR and the Australian Business Register (ABN, ACN, GST, status). Call it before naming a compa...

factstamp.agentrails.workers.dev Media & Creative 3 calls / 30d checked 2026-10-26
0.1 USDC per call per call

Check x402 REST usage

Check a dated figure you are about to act on against the publisher's own series, and receive verified, stale, contradicted or unknown with the as-of date. Call it before committing a number to a page, deck, model or deci...

factstamp.agentrails.workers.dev Search & Research 2 calls / 30d checked 2026-10-26
0.05 USDC per call per call

Entity file x402 REST usage

When you need the whole picture of one company before you sign, onboard, pay or acquire, call the entity file: ONE answer holding identity and standing, the registered office, SIC activity and previous names, the filing...

factstamp.agentrails.workers.dev Search & Research 2 calls / 30d checked 2026-10-26
0.438119 USDC per call per call

Portfolio x402 REST usage

Watch a whole list at once, when a bibliography or a dependency manifest has to stay true: up to 25 citations or package versions re-checked every day for 30 days under one token. US$5 a portfolio — 20 cents a reference,...

factstamp.agentrails.workers.dev Data & Finance 1 calls / 30d checked 2026-10-26
5 USDC per call per call

Watch x402 REST usage

Buy a standing re-check of one citation or one package version, when an answer has to stay true rather than be true once: re-checked every day for 30 days. US$0.50 the month — 1.7 cents a check, under a 2-cent lookup. Th...

factstamp.agentrails.workers.dev Search & Research 1 calls / 30d checked 2026-10-26
0.5 USDC per call per call

Bulk x402 REST usage

Check a whole bibliography or dependency manifest in one round trip, before you rely on the list: up to 12 items at a flat US$0.12 — 1 cent an item, against 2 cents for the same lookups one at a time. Every item is answe...

factstamp.agentrails.workers.dev Search & Research 1 calls / 30d checked 2026-10-26
0.12 USDC per call per call

Document x402 REST usage

Call it before you send, file or publish a document that quotes figures, names companies or cites papers. Post the text and every checkable claim comes back verified against dated primary sources, as one signed bundle wi...

factstamp.agentrails.workers.dev Productivity & Docs 1 calls / 30d checked 2026-10-26
0.25 USDC per call per call

Package x402 REST usage

Check a dependency before installing it. Give a package and, optionally, a version with its ecosystem (npm, PyPI, crates.io); the answer says whether that exact version exists, whether it is yanked or deprecated, and eve...

factstamp.agentrails.workers.dev Dev & Code 1 calls / 30d checked 2026-10-26
0.02 USDC per call per call

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