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mcp/harbor
Gemini CLI

unpaywall for Gemini CLI

io.github.smaboundless/unpaywall

Open-access availability for 120M+ scholarly articles via the Unpaywall API

client:Gemini CLI transport:stdio runtime:pypi

Install unpaywall in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

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{
  "mcpServers": {
    "unpaywall": {
      "command": "uvx",
      "args": [
        "unpaywall-mcp-server"
      ],
      "env": {
        "UNPAYWALL_EMAIL": "<UNPAYWALL_EMAIL>"
      }
    }
  }
}

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs

unpaywall in other clients

unpaywall MCP server