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crossref-mcp-server

Indexed by io.github.cyanheads
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About

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

Use this server

Add it to your MCP client. The catalogue lists this config verbatim from its source — it does not run, download, or vouch for the server. Review the command before you run it.

Transportstdio (runs a local command)
Env varsCROSSREF_MAILTO CROSSREF_BASE_URL CROSSREF_TIMEOUT_MS MCP_LOG_LEVEL
Claude Code 
claude mcp add --env CROSSREF_MAILTO= --env CROSSREF_BASE_URL= --env CROSSREF_TIMEOUT_MS= --env MCP_LOG_LEVEL= crossref-mcp-server -- npx @cyanheads/crossref-mcp-server
Cursor

Add to Cursor

If the button doesn't open Cursor, use the JSON below — Cursor accepts the same mcpServers config.

VS Code 
code --add-mcp '{"name":"crossref-mcp-server","command":"npx","args":["@cyanheads/crossref-mcp-server"],"env":{"CROSSREF_MAILTO":"","CROSSREF_BASE_URL":"","CROSSREF_TIMEOUT_MS":"","MCP_LOG_LEVEL":""}}'
JSON 
{
  "mcpServers": {
    "crossref-mcp-server": {
      "command": "npx",
      "args": [
        "@cyanheads/crossref-mcp-server"
      ],
      "env": {
        "CROSSREF_MAILTO": "",
        "CROSSREF_BASE_URL": "",
        "CROSSREF_TIMEOUT_MS": "",
        "MCP_LOG_LEVEL": ""
      }
    }
  }
}

Environment variables are listed by name only — fill in your own values. Entries never carry secrets.