MCP server

FactStamp

au.com.alpineai/factstamp

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Verify a company, figure or citation before you rely on it. Card or crypto; signed receipt.

Website

At a glance

Type

MCP server

Publisher

alpineai.com.au (verified by the MCP Registry)

Status

Working at last check

Tools

17

Token cost

About 5,993 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http factstamp https://agents.factstamp.dev/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.factstamp]
url = "https://agents.factstamp.dev/mcp"

Gemini CLI

{"mcpServers":{"factstamp":{"httpUrl":"https://agents.factstamp.dev/mcp"}}}

Cursor

{"mcpServers":{"factstamp":{"url":"https://agents.factstamp.dev/mcp"}}}

VS Code

{"servers":{"factstamp":{"type":"http","url":"https://agents.factstamp.dev/mcp"}}}

Antigravity

agy mcp add factstamp https://agents.factstamp.dev/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"factstamp","server_url":"https://agents.factstamp.dev/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"factstamp","server_url":"https://agents.factstamp.dev/mcp"}

Tools

• buy_card_package Moves money · ~189 tokens
  Included. Opens a Stripe Checkout Session for one card package and returns its payment link and its session id. This tool charges nothing and produces no artefact: on the card rail the thing that taps is a human. The package's work runs only at its redeem path, after Stripe's own record says that se
• check_document ~437 tokens
  A whole document in one call: the claims that can be verified against a primary source, each answered by the door that owns it with its own signed receipt, plus one receipt over the document. Extraction is mechanical, so the claim list and the count are reproducible from your document alone — nothin
• check_entity ~316 tokens
  Verify a legal entity: does this company exist, under which identifier and jurisdiction, and is its registration current? Cited to open primary registers (the GLEIF LEI index and US SEC EDGAR). Returns found, ambiguous, not_found or unknown; a near name match is never reported as a match. Not advice
• check_entity_file ~511 tokens
  The entity file: ONE paid answer holding everything we hold about one company: the whole picture in ONE call rather than four separate facts stitched together, at the point of signing, onboarding, paying or acquiring a counterparty. It holds identity and standing, the registered office, SIC activity
• check_entity_file_ca ~433 tokens
  Canadian company lookup and Canadian federal corporation register check by nine-digit Business Number (BN) only: corporation number, BN, governing legislation, every registered name with type, current flag and effective date, the register's own status, the registered address, the MINIMUM and MAXIMUM
• check_entity_file_il ~456 tokens
  Israeli company lookup and company register check by company number (nine digits, with its own check digit) or by registered name, Hebrew or English: identity, corporation type, the register's own status and sub-status, description and stated purpose, incorporation date, government-company flag and
• check_figure ~297 tokens
  Submit the dated figure you are about to act on. Returns verified, stale, contradicted or unknown, cited to the publisher's own series with its as-of date. Relevant wherever a number is going onto a page, deck or decision. Not advice. Comes with an Ed25519-signed receipt covering the question, the v
• check_sanctions ~459 tokens
  Sanctions screening of a name, for whether a person or company is on a sanctions list — and which one. Reads OFAC SDN, the UN consolidated list, the EU Financial Sanctions File and the UK Sanctions List, and returns listed, mismatch, not_found or unknown. The answer names the lists that were consult
• check_vat ~383 tokens
  An EU VAT number check — VAT validity, and the VAT registration behind it. Reads the official VIES service (European Commission), keyless. 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
• list_card_packages ~134 tokens
  Included. The one-off card packages as one machine-readable catalogue: the 11 products and their 13 prices in Australian dollars, the unit one payment buys for each SKU, what the package returns, and where the input is sent. One payment each, nothing metered, nothing subscribed. The per-call doors s
• list_series ~71 tokens
  Included. What this engine covers, the publisher and as-of date behind each series, and the no-guess rule.
• route_claim ~134 tokens
  Included. Shows which series a claim would be routed to, the value and date extracted, and the signals behind the score. Returns NO verdict — pay for check_figure when you want one.
• verify_bulk ~472 tokens
  Check a whole list in one call: a bibliography or a dependency manifest. Send items[] of {tool, input} or the citations[]/packages[] shorthand. Up to 12 items at a flat US$0.12 on this door; longer lists pay 0.016667 an item on the pack-funded HTTP door (POST /bulk, up to 25 items). Every item is an
• verify_citation ~490 tokens
  Says whether a citation can be repeated. Submit a DOI, an arXiv ID or a paper title: returns whether it exists, what it is (title, authors, year, container) and whether it has been retracted, cited to Crossref and arXiv. Optionally send what your document claims (title, authors, year, journal) and e
• verify_package ~335 tokens
  Reports on a dependency at the point of installation. Submit a package and version plus its ecosystem: returns whether that exact version exists, whether it is yanked or deprecated, and every advisory OSV lists against it. An invented version returns not_found with the real versions nearest to it, a
• watch_add ~425 tokens
  Watch ONE citation or ONE package version instead of checking it once. Send kind ('citation' or 'package') and the subject (a DOI, an arXiv ID or a title; or npm:express@4.18.2). The first check is answered immediately and signed, then re-checked daily for 30 days; every real change (a retraction, a
• watch_portfolio ~451 tokens
  Watch a whole list instead of one reference at a time: 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, under a cent a check — and the first check on every reference is answered and signed immediately. Each real change

Browse

• Stripe tools
• Payments
• Legal research
• Docker and Kubernetes
• Research papers

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