agents.factstamp.dev
14 x402 APIs and 1 MCP server served from agents.factstamp.dev
Every listing from agents.factstamp.dev that ToolVet tracks. Each one is called on a schedule without paying and scored out of 100.
At a glance
- Listings
- 15: 14 x402 APIs and 1 MCP server
- Passing at the latest check
- 15 of 15
- Uptime, 30 days
- 100% on average across 15 listings
- Price
- $0.02 to $0.5 per call
- Trust score
- 75 to 81, median 78
- Paying wallets, 30 days
- 3 on its busiest listing
- Verified owner
- None
- Security findings
- None found
- Listed since
- 11 Oct 2026
The x402 Bazaar counts paying wallets per listing. A wallet that paid two listings counts twice. So the Bazaar saw between 3 and 23 different wallets paying agents.factstamp.dev in 30 days.
All 15 listings
Ranked by trust score.
- 81trustPackageagents.factstamp.dev
Reports on a dependency at the point of installation. 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 every advisory OSV lists against it. A version that was never published returns not_found with the real versions nearest to it. Verdicts: verified, advisory, yanked, not_found, unknown.
$0.02per call on Base100% uptime, 190 ms, 3 paying agentsPassing, checked 34 min ago - 81trustCitationagents.factstamp.dev
FactStamp citation check: says whether a citation can be repeated. 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a paper title; the answer says whether the work exists, what it is (title, authors, year, container) and whether it has been retracted, read from Crossref and arXiv. A title absent from both returns not_found, and a near title match is never reported as verified. Cited to the source record with its retrieval time. Verdicts: verified, ambiguous, retracted, not_found, unknown.
$0.02per call on Base100% uptime, 237 ms, 3 paying agentsPassing, checked 56 min ago - 80trustCheckagents.factstamp.dev
FactStamp fact check: a dated figure or statistic checked against the publisher's own series (Australian primary sources, e.g. the Reserve Bank of Australia), returning verified, stale, contradicted or unknown with the as-of date. Relevant wherever a number is going onto a page, deck, model or decision. Anything outside coverage returns unknown rather than a guess.
$0.05per call on Base100% uptime, 280 ms, 2 paying agentsPassing, checked 48 min ago - 80trustFactStampagents.factstamp.dev
Verify a company, figure or citation before you rely on it. Card or crypto; signed receipt.
18 toolsopen100% uptime, 1.0 sPassing, checked 2 h ago - 78trustVatagents.factstamp.dev
An EU VAT number check — VAT validity, and the VAT registration behind it. Relevant wherever a VAT number is being relied on or cited: the check reads the official VIES service (European Commission), keyless, and returns valid, invalid or unknown — an outage is never reported as invalid — with the member state, the register's own request date, and the trader identity only where that member state discloses it. GB is out of scope after Brexit; XI (Northern Ireland) is covered. Not tax advice.
$0.05per call on Base100% uptime, 352 ms, 3 paying agentsPassing, checked 3 h ago - 78trustWatchagents.factstamp.dev
A standing re-check of ONE citation or package version, for an answer that must stay true for a month rather than once: daily re-checks for 30 days. US$0.50 the month — 1.7 cents a check, under a 2-cent lookup. The first check is answered and signed on purchase, and each real change (a retraction, a new advisory, a yanked version) gets its own signed receipt. One subject only: for a list use /watch/portfolio. Pay per call here, or redeem a pack code (10 credits).
$0.5per call on Base100% uptime, 256 ms, 1 paying agentsPassing, checked 18 min ago - 78trustDocumentagents.factstamp.dev
For 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 with a per-claim receipt and its licence. Claims we cannot answer are named and never charged, and the preview is free. Verdicts: verified, stale, contradicted, unknown. Prose, not a list: a bare bibliography belongs to /bulk.
$0.25per call on Base100% uptime, 281 ms, 1 paying agentsPassing, checked 1 h ago - 78trustBulkagents.factstamp.dev
A whole bibliography or dependency manifest in one round trip, at the point of relying 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 answered by the same door that answers a single call, so the verdicts cannot disagree. A list, not prose: a whole document belongs to /document. Pay per call here, or redeem a prepaid pack code (one answer-pack credit per three items, up to 25 items on that rail).
$0.12per call on Base100% uptime, 250 ms, 1 paying agentsPassing, checked 10 min ago - 78trustIl Entity Fileagents.factstamp.dev
Israeli company lookup and register check by company number (nine digits, with its check digit) or by registered name, when signing, onboarding or paying a counterparty: one Israeli company file in seven sections, read live from the Registrar of Companies on data.gov.il. Identity, type, status, purpose, incorporation date, government-company flag, last annual-report year and registered address. No officers or shareholders as people; no financials. Returns found, ambiguous, not_found or unknown.
$0.3per call on Base100% uptime, 169 ms, 1 paying agentsPassing, checked 9 h ago - 78trustCa Entity Fileagents.factstamp.dev
Canadian company lookup and federal corporation register check by nine-digit Business Number (BN), when signing, onboarding or paying a counterparty: one corporation file in six sections, read live from Corporations Canada. Corporation number, BN, governing legislation, every registered name, status, registered address, the minimum and maximum NUMBER of directors rather than their names, and annual returns. Keyed by BN, so a name alone cannot reach it. Returns found, not_found or unknown.
$0.25per call on Base100% uptime, 176 ms, 1 paying agentsPassing, checked 9 h ago - 78trustAuditagents.factstamp.dev
Audit what an agent believes about companies: send claims (subject, field, value) and get, claim by claim, supported, contradicted, stale or not_checkable with the register's own value, its own date and a citation. field is a name from the published vocabulary, never open text.
$0.2per call on Base100% uptime, 167 ms, 1 paying agentsPassing, checked 48 min ago - 77trustEntityagents.factstamp.dev
FactStamp company verification: whether a legal entity exists, is registered, and under which identifier. Reads GLEIF, US SEC EDGAR, the Australian Business Register (ABN, ACN, GST, status) and an ASIC search by ACN or ABN. Relevant wherever a company is named in a contract or filing: an Australian company check, a company register check, an ABN lookup, or an ABN, ACN, LEI or CIK for a company known only by name. Returns found, ambiguous, not_found or unknown, cited with its retrieval time.
$0.1per call on Base100% uptime, 346 ms, 2 paying agentsPassing, checked 6 h ago - 77trustSanctionsagents.factstamp.dev
Sanctions screening of a name against OFAC SDN and Non-SDN, the UN consolidated list, the EU Financial Sanctions File, the UK Sanctions List and Australia's DFAT list. Relevant before transacting with a party, and wherever a sanctions check must be evidenced. Returns listed, mismatch, not_found or unknown, with the matched entry's reference and each list's dates. A near name is never the same party; a list not consulted is named as not consulted. Not advice, not a legal determination.
$0.05per call on Base100% uptime, 326 ms, 2 paying agentsPassing, checked 3 h ago - 75trustEntity Fileagents.factstamp.dev
One company in full at the point of signing, onboarding, paying or acquiring — a company check by company number or name across the company registers. Identity and standing, registered office, SIC and prior names, the filing position, a sanctions screen across six lists, plus the ownership the registers publish (persons with significant control where published; parent relationships where a company has an LEI; beneficial ownership not public in nearly every country we cover). Not a KYB provider.
$0.438per call on Base100% uptime, 323 ms, 1 paying agentsPassing, checked 3 h ago - 75trustProbeagents.factstamp.dev
A two-cent probe of the FactStamp engine: one small claim in, one cited answer out, receipted. Send a dated figure, a company name, a DOI/arXiv id or a package@version and get the verdict, the value and the source it rests on with our retrieval time — the same engine and the same sources the full-price doors read. Unknown is a valid answer and nothing is invented. Paid per call in USDC on Base; no pack code and no unpaid tier.
$0.02per call on Base100% uptime, 733 ms, 1 paying agentsPassing, checked 4 h ago
How these numbers are made
Each listing is called on a schedule without paying. Listings with usage or a verified owner are checked about every 30 minutes, others about every 6 hours. Uptime is the share of passing checks over 30 days, averaged across this provider's listings. Trust scores follow the published method. The figures on this page can be a few minutes behind the latest checks, and listings hidden after review aren't counted.