INDIVIDUAL MCP TOOL

check_vat

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

factstamp.devnone authenticationAvailability not checked

LIVE ENDPOINT

https://agents.factstamp.dev/mcp

No auth detected

Connect to this endpoint to inspect the live schema for check_vat and invoke it with your own arguments.

{}

Inferred read-only · medium confidence · heuristic, not a guarantee.

No write-capable action terms were found; this is not proof that invocation has no side effects.

CONNECT WITH APPROVAL

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.

list_series — Free.
route_claim — Free.
check_figure — Submit the dated figure you are about to act on.
check_entity — Verify a legal entity: does this company exist, under which identifier and jurisdiction, and is its registration current?
check_entity_file — The entity file: ONE paid answer holding everything we hold about one company.
check_sanctions — Screen a name before you transact with it: is this person or company on a sanctions list, and which one?
verify_citation — Check a citation before you repeat it.
verify_package — Check a dependency before you install it.