io.github.smeet666/mcp-libraryofcongress MCP Server

Name: io.github.smeet666/mcp-libraryofcongress MCP Server
Author: io.github.smeet666

io.github.smeet666/mcp-libraryofcongress

Repository Registry

What is the io.github.smeet666/mcp-libraryofcongress MCP server?

Search inside scanned US newspapers and browse the Library of Congress catalogue. No API key.

How to install io.github.smeet666/mcp-libraryofcongress

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

LOC_USER_AGENT
Identify your own client. The project's own identifier is appended, so the Library can always reach a human.
LOC_MIN_INTERVAL_MS
Minimum milliseconds between requests. Default 6000, floor 3000.
LOC_TIMEOUT_MS
Deadline for one catalogue, record or collection request, in milliseconds. Default 30000.
LOC_NEWSPAPER_TIMEOUT_MS
Deadline for one search_newspapers request, in milliseconds. The full-text corpus answers in tens of seconds. Default 90000.
LOC_LOG_LEVEL
silent, error, info or debug. Default error. Logs go to stderr.

Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mcp-libraryofcongress": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-libraryofcongress"
      ],
      "env": {
        "LOC_USER_AGENT": "<YOUR_LOC_USER_AGENT>",
        "LOC_MIN_INTERVAL_MS": "<YOUR_LOC_MIN_INTERVAL_MS>",
        "LOC_TIMEOUT_MS": "<YOUR_LOC_TIMEOUT_MS>",
        "LOC_NEWSPAPER_TIMEOUT_MS": "<YOUR_LOC_NEWSPAPER_TIMEOUT_MS>",
        "LOC_LOG_LEVEL": "<YOUR_LOC_LOG_LEVEL>"
      }
    }
  }
}

Cursor

~/.cursor/mcp.json

{
  "mcpServers": {
    "mcp-libraryofcongress": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-libraryofcongress"
      ],
      "env": {
        "LOC_USER_AGENT": "<YOUR_LOC_USER_AGENT>",
        "LOC_MIN_INTERVAL_MS": "<YOUR_LOC_MIN_INTERVAL_MS>",
        "LOC_TIMEOUT_MS": "<YOUR_LOC_TIMEOUT_MS>",
        "LOC_NEWSPAPER_TIMEOUT_MS": "<YOUR_LOC_NEWSPAPER_TIMEOUT_MS>",
        "LOC_LOG_LEVEL": "<YOUR_LOC_LOG_LEVEL>"
      }
    }
  }
}

Windsurf

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "mcp-libraryofcongress": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-libraryofcongress"
      ],
      "env": {
        "LOC_USER_AGENT": "<YOUR_LOC_USER_AGENT>",
        "LOC_MIN_INTERVAL_MS": "<YOUR_LOC_MIN_INTERVAL_MS>",
        "LOC_TIMEOUT_MS": "<YOUR_LOC_TIMEOUT_MS>",
        "LOC_NEWSPAPER_TIMEOUT_MS": "<YOUR_LOC_NEWSPAPER_TIMEOUT_MS>",
        "LOC_LOG_LEVEL": "<YOUR_LOC_LOG_LEVEL>"
      }
    }
  }
}

VS Code

.vscode/mcp.json

{
  "servers": {
    "mcp-libraryofcongress": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "mcp-libraryofcongress"
      ],
      "env": {
        "LOC_USER_AGENT": "<YOUR_LOC_USER_AGENT>",
        "LOC_MIN_INTERVAL_MS": "<YOUR_LOC_MIN_INTERVAL_MS>",
        "LOC_TIMEOUT_MS": "<YOUR_LOC_TIMEOUT_MS>",
        "LOC_NEWSPAPER_TIMEOUT_MS": "<YOUR_LOC_NEWSPAPER_TIMEOUT_MS>",
        "LOC_LOG_LEVEL": "<YOUR_LOC_LOG_LEVEL>"
      }
    }
  }
}

Claude Code

claude mcp add mcp-libraryofcongress --env LOC_USER_AGENT=<YOUR_LOC_USER_AGENT> --env LOC_MIN_INTERVAL_MS=<YOUR_LOC_MIN_INTERVAL_MS> --env LOC_TIMEOUT_MS=<YOUR_LOC_TIMEOUT_MS> --env LOC_NEWSPAPER_TIMEOUT_MS=<YOUR_LOC_NEWSPAPER_TIMEOUT_MS> --env LOC_LOG_LEVEL=<YOUR_LOC_LOG_LEVEL> -- npx -y mcp-libraryofcongress