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io.github.cyanheads/crossref-mcp-server

io.github.cyanheads/crossref-mcp-server·v0.1.8·Search
Quality Score
80
/100

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

Repository →
§00  Trust verdict · v1 advisory ·  method
UNVERIFIEDno verdict on file

Verdict not yet evaluated for this tool. The hybrid eval runs adversarial cases first; coverage rolls out as the corpus expands. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: hybrid eval, four-state verdict, honest limits.

§01  Install
Claude Desktop (claude_desktop_config.json)
{
  "mcpServers": {
    "crossref-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/crossref-mcp-server"
      ],
      "env": {
        "CROSSREF_MAILTO": "<crossref_mailto>",
        "CROSSREF_BASE_URL": "https://api.crossref.org",
        "CROSSREF_TIMEOUT_MS": "10000",
        "MCP_LOG_LEVEL": "info",
        "MCP_HTTP_HOST": "127.0.0.1",
        "MCP_HTTP_PORT": "3010",
        "MCP_HTTP_ENDPOINT_PATH": "/mcp",
        "MCP_AUTH_MODE": "none"
      }
    }
  }
}
Cursor (.cursor/mcp.json)
{
  "mcpServers": {
    "crossref-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/crossref-mcp-server"
      ],
      "env": {
        "CROSSREF_MAILTO": "<crossref_mailto>",
        "CROSSREF_BASE_URL": "https://api.crossref.org",
        "CROSSREF_TIMEOUT_MS": "10000",
        "MCP_LOG_LEVEL": "info",
        "MCP_HTTP_HOST": "127.0.0.1",
        "MCP_HTTP_PORT": "3010",
        "MCP_HTTP_ENDPOINT_PATH": "/mcp",
        "MCP_AUTH_MODE": "none"
      }
    }
  }
}
Cline (cline_mcp_settings.json)
npx -y @cyanheads/crossref-mcp-server
§02  Environment variables
CROSSREF_MAILTO

Email for polite-pool User-Agent header — optional. Without: anonymous pool with stricter rate limits.

CROSSREF_BASE_URL

Override the Crossref API base URL. Defaults to https://api.crossref.org.

CROSSREF_TIMEOUT_MS

Per-request timeout in milliseconds.

MCP_LOG_LEVEL

Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').

CROSSREF_MAILTO

Email for polite-pool User-Agent header — optional. Without: anonymous pool with stricter rate limits.

CROSSREF_BASE_URL

Override the Crossref API base URL. Defaults to https://api.crossref.org.

CROSSREF_TIMEOUT_MS

Per-request timeout in milliseconds.

MCP_HTTP_HOST

The hostname for the HTTP server.

MCP_HTTP_PORT

The port to run the HTTP server on.

MCP_HTTP_ENDPOINT_PATH

The endpoint path for the MCP server.

MCP_AUTH_MODE

Authentication mode to use: 'none', 'jwt', or 'oauth'.

MCP_LOG_LEVEL

Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').

§03  MCP Quality Score  ·  methodology
freshness
25
completeness
10
installability
25
documentation
15
stability
5
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