io.github.cyanheads/openlibrary-mcp-server

up checked 2026-11-11T08:37:58.274Z

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Publisher-provided description

Search books and authors, fetch editions, browse subjects, and resolve cover images.

Summary by lookupd

Lets an agent search books, authors and subjects, fetch works and editions by ID or ISBN, list author works, and build cover image URLs.

Install

Claude Code, remote (streamable-http)

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

Claude Code, npm package (stdio)

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

Claude Code, npm package (stdio)

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

Codex, remote (streamable-http)

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

Codex, npm package (stdio)

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

Codex, npm package (stdio)

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

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

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

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

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

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

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

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

Tools (10 tools)

Publisher-provided text

• openlibrary_search_books Full-text book search across Open Library works. Supports field filters (title, author, subject, publisher, ISBN, language) and returns work-level records with
• openlibrary_search_inside Search the full text of books scanned by the Internet Archive — the "which book contains this passage?" lookup that the metadata tools cannot answer. Quote a ph
• openlibrary_get_work Fetch a work by Open Library Work ID (OL…W). Returns title, description, subjects, cover IDs, and linked author IDs for follow-up lookups. Works represent the a
• openlibrary_get_editions List editions of a work — different publishers, languages, formats, and print runs. Returns ISBNs, publisher, language, page count, and edition OLIDs. Use after
• openlibrary_get_edition Resolve one or more editions by identifier: ISBN-10, ISBN-13, OCLC, LCCN, or Open Library Edition ID (OL…M). Every identifier in a call shares one id_type — pas
• openlibrary_search_authors Search Open Library authors by name. Returns Open Library Author IDs, names, birth/death dates, top works, and subject associations. Use author IDs for openlibr
• openlibrary_get_author Fetch author detail by Open Library Author ID (OL…A). Returns bio, birth/death dates, photo IDs, and linked identifiers from Wikidata, VIAF, ISNI, Goodreads, an
• openlibrary_get_author_works List works by an author. Returns titles, cover IDs, and work OLIDs for drilling into editions or details. Use openlibrary_get_author for author bio and details,
• openlibrary_get_subject Browse works by subject. Returns matching works with edition counts and cover IDs, plus the total work count for the subject. Case and spacing are normalized be
• openlibrary_get_cover_url Construct a cover image URL for a book or author photo without fetching the image. Returns a direct HTTPS URL in the requested size (S/M/L). The identifier form

Details

• Version: 0.4.0
• Transports: streamable-http, stdio
• Uptime (7 days): 100%
• Median latency: 644 ms
• First indexed: 2026-11-01T09:26:29.107Z
• Last seen in registry: 2026-11-01T09:26:29.375Z
• Repository: https://github.com/cyanheads/openlibrary-mcp-server

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• 62092 servers
• Last crawl: 2026-11-11T17:17:22.074Z
• API base: https://api.lookupd.com
• MCP URL: https://api.lookupd.com/mcp