How to install nanobanana-mcp-server in Gemini CLI

An MCP server that provides image generation and editing capabilities

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We found nanobanana-mcp-server in the official MCP registry. Our automated check passed on Nov 1, 2026 (it confirms the server is published and reachable), but no one at CuratedMCP has reviewed its code, permissions or credentials handling. Check what it can access before you give it keys. Scan your machine free to see every MCP server you have installed.

Steps

1Install uv (for uvx): https://docs.astral.sh/uv/
2Open ~/.gemini/settings.json (or .gemini/settings.json in your project)
3Add the entry below. If the file already has "mcpServers", add just the inner entry
4Restart Gemini CLI and run /mcp to confirm

Configuration

~/.gemini/settings.json

{
  "mcpServers": {
    "nanobanana": {
      "command": "uvx",
      "args": [
        "nanobanana-mcp-server"
      ],
      "env": {
        "GEMINI_API_KEY": "<your-gemini-api-key>"
      }
    }
  }
}

Replace the values in angle brackets. Optional settings are listed below.

Environment variable	Required	What it is
GEMINI_API_KEYsecret	Yes	Your Gemini API key
IMAGE_OUTPUT_DIR	No	The image output directory

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