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Nanobanana Mcp

io.github.getjoystick/nanobanana-mcp ยท v0.1.2

Lean MCP server for Google's Nano Banana (Gemini) image models. Returns file paths, not base64.

Source code Set it up

Connect Runs on your machine

Terminal
claude mcp add nanobanana-mcp -e GEMINI_API_KEY=<GEMINI_API_KEY> -e NANOBANANA_MODEL=<NANOBANANA_MODEL> -e NANOBANANA_OUTPUT_DIR=<NANOBANANA_OUTPUT_DIR> -- npx -y @nanobanana/[email protected]
claude_desktop_config.json
{
  "mcpServers": {
    "nanobanana-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@nanobanana/[email protected]"
      ],
      "env": {
        "GEMINI_API_KEY": "<GEMINI_API_KEY>",
        "NANOBANANA_MODEL": "<NANOBANANA_MODEL>",
        "NANOBANANA_OUTPUT_DIR": "<NANOBANANA_OUTPUT_DIR>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "nanobanana-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@nanobanana/[email protected]"
      ],
      "env": {
        "GEMINI_API_KEY": "<GEMINI_API_KEY>",
        "NANOBANANA_MODEL": "<NANOBANANA_MODEL>",
        "NANOBANANA_OUTPUT_DIR": "<NANOBANANA_OUTPUT_DIR>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "nanobanana-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@nanobanana/[email protected]"
      ],
      "env": {
        "GEMINI_API_KEY": "<GEMINI_API_KEY>",
        "NANOBANANA_MODEL": "<NANOBANANA_MODEL>",
        "NANOBANANA_OUTPUT_DIR": "<NANOBANANA_OUTPUT_DIR>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

NameDescription
GEMINI_API_KEY
Required, secret		Gemini API key from https://aistudio.google.com/apikey
NANOBANANA_MODEL
Optional		Default image model override (default: gemini-3.1-flash-image)
NANOBANANA_OUTPUT_DIR
Optional		Default output directory override

Details

Package@nanobanana/[email protected] (NPM, stdio)
First published2 Jul 2026
Last updated2 Jul 2026
Registry nameio.github.getjoystick/nanobanana-mcp

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