fal-ai/recraft/v3 MCP Server

A Model Context Protocol (MCP) server that provides access to the fal-ai/recraft/v3 image generation model. This server allows you to generate high-quality images with superior design capabilities using advanced AI technology through the fal.ai platform.

Features

• High-Quality Image Generation: Generate stunning images using the fal-ai/recraft/v3 model
• Superior Design Capabilities: Advanced text-to-image generation with excellent design quality
• Multiple Generation Methods: Support for synchronous and queue-based generation
• Flexible Image Sizing: Support for predefined sizes and custom dimensions
• Advanced Style Control: Comprehensive style system with realistic, digital, and vector illustration styles
• Color Control: Specify custom RGB colors to guide generation
• Local Image Download: Automatically downloads generated images to local storage
• Queue Management: Submit long-running requests and check their status
• Webhook Support: Optional webhook notifications for completed requests
• Safety Checker: Built-in content safety filtering

Installation

1. Clone this repository:

git clone https://github.com/PierrunoYT/fal-recraft-v3-mcp-server.git
cd fal-recraft-v3-mcp-server

2. Install dependencies:

npm install

3. Build the project:

npm run build

Configuration

Environment Variables

Set your fal.ai API key as an environment variable:

export FAL_KEY="your_fal_api_key_here"

You can get your API key from fal.ai.

MCP Client Configuration

Add this server to your MCP client configuration. For example, in Claude Desktop's config file:

{
  "mcpServers": {
    "fal-recraft-v3": {
      "command": "npx",
      "args": ["-y", "https://github.com/PierrunoYT/fal-recraft-v3-mcp-server.git"],
      "env": {
        "FAL_KEY": "your_fal_api_key_here"
      }
    }
  }
}

If the package is published to npm, you can use:

{
  "mcpServers": {
    "fal-recraft-v3": {
      "command": "npx",
      "args": ["fal-recraft-v3-mcp-server"],
      "env": {
        "FAL_KEY": "your_fal_api_key_here"
      }
    }
  }
}

Alternatively, if you've cloned the repository locally:

{
  "mcpServers": {
    "fal-recraft-v3": {
      "command": "node",
      "args": ["/path/to/fal-recraft-v3-mcp-server/build/index.js"],
      "env": {
        "FAL_KEY": "your_fal_api_key_here"
      }
    }
  }
}

Available Tools

1. recraft_v3_generate

Generate images using the standard synchronous method.

Parameters:

• prompt (required): Text description of the image to generate
• image_size (optional): Predefined size or custom {width, height} object (default: "1024x1024")
• style (optional): Style to use for generation (default: "any")
• colors (optional): Array of RGB color objects to guide generation (max 5 colors)
• style_id (optional): Custom style ID for specific styles
• enable_safety_checker (optional): Enable content safety filtering (default: true)
• num_images (optional): Number of images to generate (1-4, default: 1)
• seed (optional): Random seed for reproducible results
• sync_mode (optional): Wait for completion (default: true)

Example:

{
  "prompt": "A futuristic cityscape with flying cars and neon lights",
  "image_size": "1024x1024",
  "style": "digital_illustration",
  "colors": [
    {"r": 0, "g": 255, "b": 255},
    {"r": 255, "g": 0, "b": 255}
  ],
  "enable_safety_checker": true
}

2. recraft_v3_generate_queue

Submit a long-running image generation request to the queue.

Parameters: Same as recraft_v3_generate plus:

• webhook_url (optional): URL for webhook notifications

Returns: A request ID for tracking the job

3. recraft_v3_queue_status

Check the status of a queued request.

Parameters:

• request_id (required): The request ID from queue submission
• logs (optional): Include logs in response (default: true)

4. recraft_v3_queue_result

Get the result of a completed queued request.

Parameters:

• request_id (required): The request ID from queue submission

Image Sizes

Predefined Sizes

• 1024x1024: Square format
• 1365x1024: Wide landscape
• 1024x1365: Tall portrait
• 1536x1024: Ultra-wide landscape
• 1024x1536: Ultra-tall portrait
• 1820x1024: Panoramic landscape
• 1024x1820: Panoramic portrait
• 1024x2048: Extra tall portrait
• 2048x1024: Extra wide landscape
• 1434x1024: Wide landscape variant
• 1024x1434: Tall portrait variant
• 1024x1280: Standard portrait
• 1280x1024: Standard landscape
• 1024x1707: Long portrait

Custom Sizes

You can also specify custom dimensions (512-2048px):

{
  "image_size": {
    "width": 1280,
    "height": 720
  }
}

Style Control

Recraft V3 offers comprehensive style control with three main categories:

Realistic Image Styles

• realistic_image: General realistic style
• realistic_image/b_and_w: Black and white photography
• realistic_image/hard_flash: Hard flash photography
• realistic_image/hdr: HDR photography
• realistic_image/natural_light: Natural lighting
• realistic_image/studio_portrait: Studio portrait style
• realistic_image/enterprise: Professional/corporate style
• realistic_image/motion_blur: Motion blur effects

Digital Illustration Styles

• digital_illustration: General digital art
• digital_illustration/pixel_art: Pixel art style
• digital_illustration/hand_drawn: Hand-drawn appearance
• digital_illustration/grain: Textured/grainy style
• digital_illustration/infantile_sketch: Childlike sketch style
• digital_illustration/2d_art_poster: 2D poster art
• digital_illustration/handmade_3d: 3D handmade style
• digital_illustration/hand_drawn_outline: Outlined hand-drawn style
• digital_illustration/engraving_color: Colored engraving style
• digital_illustration/2d_art_poster_2: Alternative 2D poster style

Vector Illustration Styles

• vector_illustration: General vector art
• vector_illustration/engraving_bw: Black and white engraving
• vector_illustration/line_art: Clean line art
• vector_illustration/line_circuit: Circuit-like line patterns
• vector_illustration/linocut: Linocut print style

Any Style

• any: Let the model choose the best style (default)

Example:

{
  "style": "digital_illustration/pixel_art"
}

Color Control

Guide the generation with specific RGB colors:

{
  "colors": [
    {"r": 255, "g": 0, "b": 0},
    {"r": 0, "g": 255, "b": 0},
    {"r": 0, "g": 0, "b": 255}
  ]
}

Note: Maximum of 5 colors can be specified.

Safety Checker

Control content safety filtering:

{
  "enable_safety_checker": true
}

When enabled (default), the safety checker filters out potentially harmful content.

Output

Generated images are automatically downloaded to a local images/ directory with descriptive filenames. The response includes:

• Local file paths
• Original URLs
• Image dimensions (when available)
• Content types
• File sizes (when available)
• Generation parameters used
• Request IDs for tracking
• Seed values for reproducibility

Error Handling

The server provides detailed error messages for:

• Missing API keys
• Invalid parameters
• Network issues
• API rate limits
• Generation failures
• Safety checker violations

Development

Running in Development Mode

npm run dev

Testing the Server

npm test

Getting the Installation Path

npm run get-path

API Reference

This server implements the fal-ai/recraft/v3 API. For detailed API documentation, visit:

• fal.ai Documentation
• fal.ai Client Library

Examples

Basic Text-to-Image Generation

{
  "prompt": "A majestic dragon soaring through clouds"
}

Advanced Generation with Style Control

{
  "prompt": "A cyberpunk cityscape at night",
  "style": "digital_illustration",
  "colors": [
    {"r": 0, "g": 255, "b": 255},
    {"r": 255, "g": 0, "b": 255}
  ],
  "image_size": "1536x1024"
}

Realistic Photography Style

{
  "prompt": "A portrait of a woman in natural lighting",
  "style": "realistic_image/natural_light",
  "image_size": "1024x1280"
}

Vector Art Generation

{
  "prompt": "A minimalist logo design for a tech company",
  "style": "vector_illustration/line_art",
  "colors": [
    {"r": 0, "g": 0, "b": 0},
    {"r": 255, "g": 255, "b": 255}
  ]
}

Queue-based Generation with Webhook

{
  "prompt": "A detailed architectural visualization of a modern building",
  "style": "realistic_image/hdr",
  "webhook_url": "https://your-server.com/webhook"
}

License

MIT License - see LICENSE file for details.

Contributing

1. Fork the repository
2. Create a feature branch
3. Make your changes
4. Add tests if applicable
5. Submit a pull request

Support

For issues and questions:

• Open an issue on GitHub
• Check the fal.ai documentation

Changelog

v1.0.0

• Initial release with fal-ai/recraft/v3 API support
• Text-to-image generation with superior design capabilities
• Comprehensive style system with realistic, digital, and vector illustration styles
• RGB color control for guided generation
• Queue management with webhook support
• Local image download functionality
• Built-in safety checker
• Comprehensive error handling