io.github.cyanheads/libofcongress-mcp-server

up checked 2026-11-11T12:38:41.408Z

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Publisher-provided description

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

Summary by lookupd

Searches and browses Library of Congress digital collections, historical newspaper OCR text, and LC Subject Headings for research.

Install

Claude Code, remote (streamable-http)

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

Claude Code, npm package (stdio)

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

Claude Code, npm package (stdio)

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

Codex, remote (streamable-http)

codex mcp add libofcongress-mcp-server --url https://libofcongress.caseyjhand.com/mcp

Codex, npm package (stdio)

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

Codex, npm package (stdio)

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

Cursor, remote (streamable-http) → .cursor/mcp.json

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

Cursor, npm package (stdio) → .cursor/mcp.json

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

Cursor, npm package (stdio) → .cursor/mcp.json

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

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (6 tools)

Publisher-provided text

• libofcongress_search_items Search the Library of Congress digital collections by keyword. Optionally filter by material format (photos, maps, newspapers, audio, etc.), date range, subject
• libofcongress_get_item Retrieve the full metadata record for a specific LOC digital item. Returns the imprint (place, publisher, and date of publication), contributors, LCSH subject h
• libofcongress_search_newspapers Search historical newspaper pages in the Chronicling America corpus. Returns matching pages with the opening of each page's OCR text (~500 characters), publicat
• libofcongress_get_newspaper_page Retrieve the full text of one LOC page — a historical newspaper page, or a book or manuscript page — or, with match, only the passages around your search terms,
• libofcongress_search_subjects Search Library of Congress Subject Headings (LCSH) by keyword. Returns authorized subject headings and their URIs in a stable paged order, promoting an exact ma
• libofcongress_browse_collections List and browse Library of Congress curated digital collections. Returns collection names, descriptions, item counts, slugs, and URLs. Optionally filter by keyw

Details

• Version: 0.6.0
• Transports: streamable-http, stdio
• Uptime (7 days): 100%
• Median latency: 630 ms
• First indexed: 2026-11-01T09:26:08.066Z
• Last seen in registry: 2026-11-03T09:17:23.114Z
• Repository: https://github.com/cyanheads/libofcongress-mcp-server

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