Gemini Imagen 3.0 MCP Server

A professional Model Context Protocol (MCP) server implementation that harnesses Google’s Imagen 3.0 model through the Gemini API for high-quality image generation. Built with TypeScript and designed for seamless integration with Claude Desktop and other MCP-compatible hosts.

🌟 Features

• Leverage Google’s state-of-the-art Imagen 3.0 model via Gemini API
• Generate up to 4 high-quality images per request
• Automatic file management with intelligent naming
• HTML preview generation with file:// protocol support
• Built on MCP protocol for AI agent compatibility
• TypeScript implementation with robust error handling

🚀 Quick Start

Prerequisites

• Node.js 18 or higher
• Google Gemini API key
• Claude Desktop or another MCP-compatible host

Installation

1. Clone the repository:

git clone https://github.com/yourusername/gemini-imagen-mcp-server.git
cd gemini-imagen-mcp-server

2. Install dependencies:

npm install

3. Build the TypeScript code:

npm run build

⚙️ Configuration

1. Configure Claude Desktop by adding to claude_desktop_config.json:

{
  "mcpServers": {
    "gemini-image-gen": {
      "command": "node",
      "args": ["./build/index.js"],
      "cwd": "<path-to-project-directory>",
      "env": {
        "GEMINI_API_KEY": "your-gemini-api-key"
      }
    }
  }
}

2. Replace placeholders:
   • <path-to-project-directory>: Your project path
   • your-gemini-api-key: Your Gemini API key

🛠️ Available Tools

1. generate_images

Generates images using Google’s Imagen 3.0 model.

Parameters:

• prompt (required): Text description of the image to generate
• numberOfImages (optional): Number of images (1-4, default: 1)

File Management:

• Images are automatically saved in G:image-gen3-google-mcp-serverimages
• Filenames follow the pattern: {sanitized-prompt}-{timestamp}-{index}.png
• Timestamps ensure unique filenames
• Prompts are sanitized for safe filesystem usage

Example:

Generate an image of a futuristic city at night

2. create_image_html

Creates HTML preview tags for generated images.

Parameters:

• imagePaths (required): Array of image file paths
• width (optional): Image width in pixels (default: 512)
• height (optional): Image height in pixels (default: 512)

Returns HTML tags with absolute file:// URLs for local viewing.

Example:

Create HTML tags for the generated images with width=400

🔧 Development

# Install dependencies
npm install

# Build TypeScript
npm run build

# Run tests (when available)
npm test

🤝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request. For major changes:

1. Fork the repository
2. Create your feature branch (git checkout -b feature/AmazingFeature)
3. Commit your changes (git commit -m 'Add some AmazingFeature')
4. Push to the branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

📝 Error Handling

The server implements two main error codes:

• tool_not_found (1): When the requested tool is not available
• execution_error (2): When image generation or HTML creation fails

📄 License

MIT License - see the LICENSE file for details.

✨ Author

Falah G. Salieh

• Copyright © 2025
• GitHub: @yourgithubhandle
• Email: your.email@example.com

🙏 Acknowledgments

• Google Gemini API and Imagen 3.0 model
• Model Context Protocol (MCP) by Anthropic
• Claude Desktop team for MCP host implementation

📌 Tags

#MCP #Gemini #Imagen3 #AI #ImageGeneration #TypeScript #NodeJS #GoogleAI #ClaudeDesktop

Made with ❤️ by Falah G. Salieh