io.github.cyanheads/crossref-mcp-server

io.github.cyanheads/crossref-mcp-server

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

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Connect this server

Add this to your MCP client config — claude_desktop_config.json (Claude Desktop) or .cursor/mcp.json (Cursor).Suits: Claude Desktop · Cursor.

{
  "mcpServers": {
    "crossref-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/crossref-mcp-server@0.5.1"
      ],
      "env": {
        "CROSSREF_BASE_URL": "https://api.crossref.org",
        "CROSSREF_TIMEOUT_MS": "10000",
        "MCP_LOG_LEVEL": "info"
      }
    }
  }
}
Environment variables
  • CROSSREF_BASE_URLOverride the Crossref API base URL. Defaults to https://api.crossref.org.
  • CROSSREF_TIMEOUT_MSPer-request timeout in milliseconds.
  • MCP_LOG_LEVELSets the minimum log level for output (e.g., 'debug', 'info', 'warn').

A starting point — check the repository for exact arguments and setup. Restart your client after editing the config.

Category
Developer Tools
Version
0.5.1
Registry
active
Published
11/4/2026

Remotes

  • streamable-httphttps://crossref.caseyjhand.com/mcp

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