refcheck

{
  "mcpServers": {
    "refcheck": {
      "command": "uvx",
      "args": [
        "refcheck-mcp"
      ],
      "env": {
        "CROSSREF_EMAIL": "<crossref_email>",
        "S2_API_KEY": "<your-s2_api_key>",
        "ELSEVIER_KEY": "<your-elsevier_key>",
        "ELSEVIER_INSTTOKEN": "<your-elsevier_insttoken>",
        "IEEE_API_KEY": "<your-ieee_api_key>"
      }
    }
  }
}