General Tools

factstamp.dev

Provides general-purpose tools through the Model Context Protocol.

x402 supported1 endpoint13 known toolsFirst detected October 10, 2026Last detected October 11, 2026

ENDPOINT 1

https://agents.factstamp.dev/mcp

No auth detected

MCP server metadata

Name: FactStamp
Version: 0.1.3

Capabilities

tools.listChanged

Known tools 13

list_series

Free.

Inferred read-only

route_claim

Free.

Inferred read-only

check_figure

Submit the dated figure you are about to act on.

Inferred read-only

check_entity

Verify a legal entity: does this company exist, under which identifier and jurisdiction, and is its registration current?

Inferred read-only

check_entity_file

The entity file: ONE paid answer holding everything we hold about one company.

Inferred read-only

check_sanctions

Screen a name before you transact with it: is this person or company on a sanctions list, and which one?

Inferred read-only

check_vat

Check an EU VAT number before you rely on it: is this number a live VAT registration, and who is behind it?

Inferred read-only

verify_citation

Check a citation before you repeat it.

Inferred read-only

verify_package

Check a dependency before you install it.

Inferred read-only

watch_add

Watch ONE citation or ONE package version instead of checking it once.

Inferred read-only

watch_portfolio

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.

Inferred read-only

verify_bulk

Check a whole list in one call: a bibliography or a dependency manifest.

Inferred read-only

check_document

Check 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.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

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

Claude Code

.mcp.json

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

Claude Desktop

Settings → Connectors → Add custom connector

Name: factstamp
Remote MCP URL: https://agents.factstamp.dev/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

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

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

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

Generic MCP

Client-specific MCP configuration

{
  "name": "factstamp",
  "transport": "streamable-http",
  "url": "https://agents.factstamp.dev/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Loading Trust v2 evidence…

Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.