ComfyUI Extension: Eigen AI FLUX API Plugin

Authored by jialuw0830

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Eigen AI FLUX API integration for ComfyUI with LoRA support and large font prompt inputs. Features high-quality image generation using FLUX.1-schnell model with multi-LoRA support, content upscaling, and optimized prompt input interface.

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    README

    Eigen AI FLUX API Plugin for ComfyUI

    A ComfyUI plugin that integrates with the Eigen AI FLUX API, providing high-quality image generation with LoRA support.

    🚀 Quick Installation

    1. Install ComfyUI

    If you haven’t installed ComfyUI yet:

    # Clone ComfyUI
git clone https://github.com/comfyanonymous/ComfyUI.git
cd ComfyUI

# Install dependencies
pip install -r requirements.txt

# (Optional) Start ComfyUI
python main.py

    2. Install the Plugin

    Method A: Install via ComfyUI-Manager (Recommended)

    1. Install ComfyUI-Manager if not already installed:

      cd ComfyUI/custom_nodes/
git clone https://github.com/ltdrdata/ComfyUI-Manager.git

      Restart ComfyUI after installation.

    2. Install this plugin via Manager:

      1. Start ComfyUI:

        python main.py

      2. Open ComfyUI-Manager

      3. Search for “Eigen AI FLUX API” or “flux api”

      4. Click Install and wait until it finishes

      5. Restart ComfyUI

      6. Verify nodes appear in the left panel by searching “Eigen AI FLUX API”

    Method B: Manual Install

    If you prefer manual installation:

    cd ComfyUI/custom_nodes/
git clone https://github.com/jialuw0830/flux_api_comfyui_plugin.git

# (Optional) Start ComfyUI
cd ComfyUI
python main.py

    3. Post-Installation Steps

    1. Restart ComfyUI

    2. Search for “Eigen AI FLUX API” in the node browser

    3. Generated images will be saved in:

      ComfyUI/output

    🎨 Key Features

    • High-Quality Generation — Uses FLUX.1-schnell model
    • Multi-LoRA Support — Up to 3 LoRAs simultaneously
    • Upscaling — Supports 2× and 4× upscaling
    • Fast Performance — Uses quantized models for quick generation

    🔧 Node Descriptions

    1. Eigen AI FLUX API Generator

    Main generation node supporting:

    • Up to 3 LoRAs
    • Seed control for reproducibility
    • 2× / 4× upscaling

    2. Eigen AI FLUX API Status

    Monitors API status and system resources

    📝 Usage Examples

    Basic Workflow

    FluxPromptNode → FluxAPINode → Output

    Prompt Example

    A beautiful landscape painting in Studio Ghibli style, 
featuring rolling hills, cherry blossoms, and a peaceful atmosphere, 
soft lighting, detailed textures

    🔗 API Configuration

    • Default API URL:

      http://74.81.65.108:8000

    • API URL can be customized in node parameters.

    🆘 Troubleshooting

    • Error: "This action is not allowed with this security level configuration." Solution: Edit:

      ComfyUI/user/default/ComfyUI-Manager/config.ini

      Change:

      security_level = normal

      to:

      security_level = weak

      Then restart ComfyUI.

    📄 License

    MIT License

    ✨ Enjoy using the Eigen AI FLUX API Plugin! 🎨