Nano Banana MCP
Provides tools for image generation and editing using Google's Gemini models via Google AI Studio, supporting various model selections and customizable aspect ratios.
Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@Nano Banana MCPGenerate a 16:9 pro quality image of a cyberpunk city at night"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
Nano Banana MCP (Local Fork)
Fork of nano-banana-mcp with model selection and aspect ratio support.
Changes from upstream
Model selection: Choose between
flash(fast/cheap) andpro(slower/better) via env var or per-request parameterAspect ratio: Pass
aspectRatiotogenerate_image(1:1, 16:9, 9:16, 3:2, 4:3, 21:9, etc.)Accurate model labeling: Status output shows actual model name instead of incorrect "Gemini 2.5 Flash"
Models
Quality | Model ID | Speed | Cost |
|
| Fast | ~$0.04-0.05/image |
|
| Slower | ~$0.13-0.24/image |
Configuration
{
"nano-banana": {
"type": "stdio",
"command": "node",
"args": ["/path/to/nano-banana-mcp-local/dist/index.js"],
"env": {
"GEMINI_API_KEY": "your-key-here",
"NANO_BANANA_MODEL": "flash"
}
}
}Environment Variables
Variable | Values | Default | Description |
| API key string | required | Your Google AI Studio API key |
|
|
| Default model for all requests |
Usage
generate_image
generate_image({
prompt: "A dramatic photo of...",
quality: "pro", // optional, overrides env default
aspectRatio: "16:9" // optional, default 1:1
})edit_image / continue_editing
Same as upstream, plus optional quality parameter.
License
MIT (same as upstream)
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