s3 for Gemini CLI

io.github.ofershap/s3

AWS S3 MCP — list buckets, browse objects, upload/download, presigned URLs.

client:Gemini CLI transport:stdio runtime:npm

Install s3 in Gemini CLI

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

{
  "mcpServers": {
    "s3": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-server-s3"
      ]
    }
  }
}

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