Banana Image MCP
What is Banana Image MCP?
Banana Image MCP is an MCP (Model Context Protocol) server that enables Claude and other AI assistants to generate high-quality images using Google's latest Gemini image models.
Simply describe what you want, and Claude will create it - from quick concept sketches to stunning 4K professional artwork.
Key Features
| Feature | Description |
|---|---|
| 4K Ultra HD | Generate images up to 3840px with Pro model |
| Dual Model Support | Flash (fast, 2-3s) + Pro (4K quality, 5-8s) |
| Smart Model Selection | Automatically picks the best model based on your prompt |
| Google Search Grounding | Pro model uses real-world knowledge for accuracy |
| Flexible Aspect Ratios | 1:1, 16:9, 9:16, 4:3, 3:2, 21:9 and more |
| Image Editing | Edit existing images with natural language |
| Advanced Reasoning | Configurable thinking levels for complex compositions |
Quick Start
1. Get a Gemini API Key
Get your free API key from Google AI Studio
2. Install & Configure
For Claude Desktop, add to your config file:
{
"mcpServers": {
"banana-image": {
"command": "uvx",
"args": ["banana-image-mcp"],
"env": {
"GEMINI_API_KEY": "your-api-key-here"
}
}
}
}
Config file locations
| Platform | Path |
|---|---|
| macOS | ~/Library/Application Support/Claude/claude_desktop_config.json |
| Windows | %APPDATA%\Claude\claude_desktop_config.json |
| Linux | ~/.config/Claude/claude_desktop_config.json |
Other MCP clients (Cursor, VS Code, Cline, etc.)
The configuration is similar for other MCP-compatible clients:
{
"mcpServers": {
"banana-image": {
"command": "uvx",
"args": ["banana-image-mcp"],
"env": {
"GEMINI_API_KEY": "your-api-key-here"
}
}
}
}
Updating to the latest version
When using uvx, packages are cached locally. To get the latest version after an update:
# Clear the cache for this package
uv cache clean banana-image-mcp
# Then restart your MCP client (Claude Desktop, etc.)
Or specify a version explicitly:
{
"mcpServers": {
"banana-image": {
"command": "uvx",
"args": ["banana-image-mcp==1.0.0"],
"env": {
"GEMINI_API_KEY": "your-api-key-here"
}
}
}
}
3. Start Creating
Just ask Claude to generate images:
"Generate a cute cat wearing a space suit"
"Create a professional product photo of a coffee cup, 4K quality"
"Make a 16:9 YouTube thumbnail about cooking"
"Edit this image: make the sky more dramatic"
Models Comparison
| Model | Speed | Max Resolution | Best For |
|---|---|---|---|
| Gemini 2.5 Flash | 2-3s | 1024px | Quick drafts, iterations, prototypes |
| Gemini 3 Pro | 5-8s | 4K (3840px) | Final assets, marketing, professional work |
Model Selection
The server defaults to Pro model for best quality. You can also control it:
| Say this... | Model Used |
|---|---|
| "quick sketch", "draft", "prototype" | Flash |
| "4K", "professional", "high quality" | Pro |
| (default) | Pro |
Tool Parameters
| Parameter | Type | Default | Description |
|---|---|---|---|
prompt |
string | required | Image description |
model_tier |
string | "pro" |
"flash", "pro", or "auto" |
resolution |
string | "4k" |
"1k", "2k", "4k", "high" |
aspect_ratio |
string | - | "1:1", "16:9", "9:16", "4:3", "21:9", etc. |
thinking_level |
string | "high" |
"low" or "high" (Pro only) |
enable_grounding |
bool | true |
Enable Google Search grounding (Pro only) |
n |
int | 1 |
Number of images (1-4) |
negative_prompt |
string | - | What to avoid in the image |
Environment Variables
| Variable | Required | Default | Description |
|---|---|---|---|
GEMINI_API_KEY |
Yes | - | Your Gemini API key |
IMAGE_OUTPUT_DIR |
No | ~/banana-images |
Where to save generated images |
Example Outputs
Here are some examples of what you can create:
- Product Photography: Professional product shots with studio lighting
- Concept Art: Fantasy landscapes, character designs, sci-fi scenes
- Marketing Materials: Social media graphics, banners, thumbnails
- Technical Diagrams: Flowcharts, architecture diagrams with text
- Photo-realistic Images: Portraits, nature, urban photography
Development
# Clone the repository
git clone https://github.com/zengwenliang416/banana-image-mcp.git
cd banana-image-mcp
# Install dependencies
uv sync
# Run in development mode
fastmcp dev banana_image_mcp.server:create_app
# Run tests
pytest
# Lint and format
ruff check .
ruff format .
Changelog
v1.0.0
- First stable release
- 4K resolution output support (up to 3840px)
- Dual model support: Flash (fast) + Pro (4K quality)
- Intelligent model selection based on prompt
- Google Search grounding for Pro model
- Flexible aspect ratios (1:1, 16:9, 9:16, 4:3, 21:9, etc.)
- Image editing with natural language
- GitHub Actions CI/CD workflow
v0.1.2
- Added 4K resolution output support
- Default to Pro model and 4K resolution
- Fixed image_size parameter passing to Gemini API
v0.1.1
- Updated package metadata and author info
v0.1.0
- Initial release with dual model support
Links
License
MIT License - see LICENSE for details.
Made with by Wenliang Zeng
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Metadata
Release files for banana-image-mcp 1.0.1
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Source distribution (sdist)
| File | Size | Uploaded | Provenance | Actions |
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| banana_image_mcp-1.0.1.tar.gz | 190.1 kB | Without provenance | Details for banana_image_mcp-1.0.1.tar.gz |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Actions Reset |
|---|---|---|---|---|
| banana_image_mcp-1.0.1-py3-none-any.whl | Python 3 | none | any | Details for banana_image_mcp-1.0.1-py3-none-any.whl |
Total release size: 272.0 kB
Release files / banana_image_mcp-1.0.1.tar.gz
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