Libofcongress MCP Server: Install & Setup

Install Libofcongress in Claude Code

Remote URL

Claude Code

claude mcp add --transport http libofcongress https://libofcongress.caseyjhand.com/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "libofcongress": {
      "url": "https://libofcongress.caseyjhand.com/mcp"
    }
  }
}

npm

Claude Code

claude mcp add libofcongress -- npx -y @cyanheads/libofcongress-mcp-server

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "libofcongress": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/libofcongress-mcp-server"
      ]
    }
  }
}

Frequently asked questions

What does the Libofcongress MCP server do?

Search LOC digital collections, Chronicling America newspapers (full OCR), and LC Subject Headings.

Is the Libofcongress MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does Libofcongress run locally or remotely?

Local + Remote. Can run locally or be used as a hosted remote server.

How do I add Libofcongress to Claude Code?

Run: claude mcp add --transport http libofcongress https://libofcongress.caseyjhand.com/mcp

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