# Nano Banana MCP (Local Fork)

Fork of [nano-banana-mcp](https://github.com/ConechoAI/Nano-Banana-MCP) with model selection and aspect ratio support.

## Changes from upstream

- **Model selection**: Choose between `flash` (fast/cheap) and `pro` (slower/better) via env var or per-request parameter
- **Aspect ratio**: Pass `aspectRatio` to `generate_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 |
|---------|----------|-------|------|
| `flash` | `gemini-3.1-flash-image-preview` | Fast | ~$0.04-0.05/image |
| `pro` | `gemini-3-pro-image-preview` | Slower | ~$0.13-0.24/image |

## Configuration

```json
{
  "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 |
|----------|--------|---------|-------------|
| `GEMINI_API_KEY` | API key string | required | Your Google AI Studio API key |
| `NANO_BANANA_MODEL` | `flash`, `pro` | `flash` | 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)