Crossref MCP Server: Install & Setup

Install Crossref in Claude Code

Claude Code

claude mcp add mrfentmen-crossref -- npx -y crossref-mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "mrfentmen-crossref": {
      "command": "npx",
      "args": [
        "-y",
        "crossref-mcp"
      ]
    }
  }
}

Search scholarly works and resolve DOIs through Crossref. No key required.

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

Run: claude mcp add mrfentmen-crossref -- npx -y crossref-mcp

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