# crossref-mcp-server MCP server

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

## Links
- Registry page: https://www.getdrio.com/mcp/io-github-cyanheads-crossref-mcp-server
- Repository: https://github.com/cyanheads/crossref-mcp-server

## Install
- Command: `npx -y @cyanheads/crossref-mcp-server`
- Auth: Not captured

## Setup notes
- Package: Npm @cyanheads/crossref-mcp-server v0.1.6
- Environment variable: CROSSREF_MAILTO
- Environment variable: CROSSREF_BASE_URL (default https://api.crossref.org)
- Environment variable: CROSSREF_TIMEOUT_MS (default 10000)
- Environment variable: MCP_LOG_LEVEL (default info)
- Package: Npm @cyanheads/crossref-mcp-server v0.1.6
- Environment variable: CROSSREF_MAILTO
- Environment variable: CROSSREF_BASE_URL (default https://api.crossref.org)
- Environment variable: CROSSREF_TIMEOUT_MS (default 10000)
- Environment variable: MCP_HTTP_HOST (default 127.0.0.1)
- Environment variable: MCP_HTTP_PORT (default 3010)
- Environment variable: MCP_HTTP_ENDPOINT_PATH (default /mcp)
- Environment variable: MCP_AUTH_MODE (default none)
- Environment variable: MCP_LOG_LEVEL (default info)

## Tools
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## Resources
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## Prompts
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## Metadata
- Owner: io.github.cyanheads
- Version: 0.1.6
- Runtime: Npm
- Transports: STDIO, HTTP
- License: Not captured
- Language: Not captured
- Stars: Not captured
- Updated: May 23, 2026
- Source: https://registry.modelcontextprotocol.io