UK Companies House (Registrum) - no API key

Install UK Companies House (Registrum) - no API key for Claude Desktop

Claude Desktop reads mcpServers from claude_desktop_config.json. Restart the app after saving.

1. Open ~/Library/Application Support/Claude/claude_desktop_config.json on macOS, %APPDATA%\Claude\claude_desktop_config.json on Windows, or ~/.config/Claude/claude_desktop_config.json on Linux.
2. Paste the JSON config below.
3. Replace placeholder secrets, then restart the client if it does not reload on its own.

{
  "mcpServers": {
    "registrumuk-uk-companies-house-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@registrum/mcp@2.0.15"
      ],
      "env": {
        "REGISTRUM_API_KEY": "YOUR_REGISTRUM_API_KEY"
      }
    }
  }
}

Official Claude Desktop docs