mcp-companies-house

An intelligent MCP server for UK company data — not an API wrapper. Compound intelligence tools built on the free Companies House API, covering 5M+ UK companies across England, Wales, Scotland, and Northern Ireland.

What makes this different: Other Companies House MCP servers map 1:1 to API endpoints. This one does things the raw API can't — risk scoring, ownership chain tracing, director network mapping, filing anomaly detection, and disqualification checks — all in single tool calls.

1. Get a free API key — Companies House Developer Hub (takes 2 minutes)

2. Install

npm install -g @passiveinc/mcp-companies-house

3. Add to your MCP client (Claude Desktop, Cursor, Cline, etc.)

{
  "mcpServers": {
    "companies-house": {
      "command": "mcp-companies-house",
      "env": {
        "CH_API_KEY": "your-api-key-here"
      }
    }
  }
}

That's it. Ask your AI assistant "tell me about Tesco" and it will use the tools automatically.

| Tool | Use When | Example | |------|----------|---------| | search_company | You have a company name but no number | "Find Revolut" | | get_company_profile | You need basic info for a known company | "What does company 00445790 do?" | | deep_due_diligence | Risk assessment, KYC, AML, investment research | "Is this company risky?" | | trace_ownership_chain | Finding ultimate beneficial owners | "Who really owns this company?" | | map_director_network | Director background checks, finding connected companies | "What other companies does this director run?" | | detect_filing_anomalies | Compliance monitoring, filing pattern analysis | "Are their filings up to date?" | | search_officers | Finding a person across all UK companies | "Find director Jane Smith" | | check_disqualifications | KYC/AML compliance — checking for banned directors | "Have any dire