io.github.cyanheads/crossref-mcp-serversearch

crossref-mcp-server

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Resolve DOIs, search ~155M scholarly works, and fetch references via the Crossref REST API.

Install

claude mcp add crossref-mcp-server -- npx -y @cyanheads/[email protected]

Requires: CROSSREF_MAILTO, CROSSREF_BASE_URL, CROSSREF_TIMEOUT_MS, MCP_LOG_LEVEL

Our take

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Verification record

npm: @cyanheads/crossref-mcp-server
in registry since: 2026-06-20

github.com/cyanheads/crossref-mcp-server