Libofcongress Mcp Server

Overview

Libofcongress Mcp Server lets you search the Library of Congress digital collections, Chronicling America newspapers with full OCR text, and LC Subject Headings directly from your AI assistant. It exposes these research tools as callable functions within Claude, Cursor, VS Code, and other MCP clients.

The server runs locally on your machine via the npm package @cyanheads/libofcongress-mcp-server, communicating over stdio. No authentication is needed—install it and start searching. Version v0.2.17 is available under the Apache-2.0 license, with source code at cyanheads/libofcongress-mcp-server on GitHub.

Libofcongress Mcp Server belongs in the Development category on mcp.site and integrates with MCP clients including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, and Zed. If you maintain this server, claim your listing here to verify ownership and keep information up to date.

Installation

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