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mcp/harbor
Claude Code

crossref for Claude Code

io.github.smaboundless/crossref

Search and retrieve scholarly metadata from the Crossref REST API

client:Claude Code transport:stdio runtime:pypi

Install crossref in Claude Code

run in your project directory

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

claude mcp add crossref -e CROSSREF_MAILTO=<CROSSREF_MAILTO> -- uvx crossref-mcp-server

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

crossref in other clients

crossref MCP server