io.github.cyanheads/crossref-mcp-server

up checked 2026-11-11T05:37:31.198Z

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Publisher-provided description

Resolve DOIs, search ~188M scholarly works, and fetch references via the Crossref REST API.

Summary by lookupd

Look up DOIs, search about 188M scholarly works, list cited references, and find journals, publishers, and funders via Crossref.

Install

Claude Code, remote (streamable-http)

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

Claude Code, npm package (stdio)

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

Claude Code, npm package (stdio)

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

Codex, remote (streamable-http)

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

Codex, npm package (stdio)

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

Codex, npm package (stdio)

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

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

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

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

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

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

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

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

Tools (7 tools)

Publisher-provided text

• crossref_get_work Resolves a DOI to its full Crossref metadata record: title, authors, editors, affiliations, abstract (when deposited), journal or container with the volume, iss
• crossref_get_references Returns the outgoing reference list for a DOI — the works cited by this paper. Each reference includes the deposited citation string and, where Crossref has res
• crossref_search_works Searches the Crossref works index (~188M records) by free text and/or structured filters. The generic query matches loosely across all fields; scope precisely w
• crossref_search_journals Finds Crossref journal records by ISSN or title query. Provide issn for an exact single-journal lookup, or query for title-based search returning up to rows res
• crossref_search_funders Finds funders registered in the Crossref Funder Registry by name or funder DOI. Provide funder_doi for an exact single-funder lookup — the full DOI ("10.13039/1
• crossref_get_member Resolves a Crossref member ID to its publisher/organization record: primary name, alternate imprint names, owned DOI prefixes, registered DOI counts, a per-work
• crossref_get_prefix Resolves a DOI prefix — the registrant portion of a DOI, e.g. "10.1038" — to the Crossref member its prefix record names: the publisher name and numeric member

Changes

Newest first, as lookupd saw them

• 2026-11-11: version 0.5.1 → 0.5.2

Details

• Version: 0.5.2
• Transports: streamable-http, stdio
• Uptime (7 days): 100%
• Median latency: 818 ms
• First indexed: 2026-11-01T09:25:55.794Z
• Last seen in registry: 2026-11-11T11:17:24.574Z
• Repository: https://github.com/cyanheads/crossref-mcp-server

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