crossref mcp for Claude Code

io.github.mrfentmen/crossref-mcp

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

client:Claude Code transport:stdio runtime:npm

Install crossref mcp in Claude Code

run in your project directory

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

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs