ComfyUI-FLUX-BFL-API

Custom nodes for integrating Flux models with the BFL API.

Installation

Option 1: Install via Custom Nodes Manager

1. Open the Custom Nodes Manager.
2. Search for "ComfyUI-FLUX-BFL-API".
3. Select the package and follow the installation instructions.

Option 2: Manual Installation

1. Clone the repository:

   cd custom_nodes
   git clone https://github.com/gelasdev/ComfyUI-FLUX-BFL-API.git
   

2. Install the required dependencies:

   pip install -r requirements.txt
   

3. Get your BFL API key from api.bfl.ai.

4. Add your API key to the config.ini file:

   [API]
   X_KEY = YOUR_API_KEY
   BASE_URL = https://api.bfl.ai/v1/
   

Configuration

You can either use config.ini for a global API key, or connect a Flux Config (BFL) node directly to any generation node to override the key, base URL, and region per-node. If no config node is connected, config.ini is used automatically.

Nodes

Generation

Node	Description
Flux Pro 1.1 (BFL)	Text-to-image with Flux Pro 1.1
Flux Pro 1.1 Ultra (BFL)	High-resolution text-to-image
Flux Dev (BFL)	Text-to-image with Flux Dev
Flux Pro Fill (BFL)	Inpainting / outpainting
Flux Pro Expand (BFL)	Outpainting with directional padding
Flux Erase (BFL)	Object removal via binary mask (flux-tools/erase-v1)
Flux Outpaint (BFL)	Image extension via target canvas + reference offsets (flux-tools/outpainting-v1)
Flux Virtual Try-On (BFL)	Virtual try-on — dress a person image in a garment image (flux-tools/vto-v1)
Flux Kontext Pro (BFL)	Image editing with context (up to 4 images)
Flux Kontext Max (BFL)	Image editing with context, max quality
Flux 2 Max (BFL)	Flux 2 Max generation
Flux 2 Pro (BFL)	Flux 2 Pro generation
Flux 2 Pro Preview (BFL)	Flux 2 Pro preview (latest advances)
Flux 2 Flex (BFL)	Flux 2 Flex generation
Flux 2 Klein 9B (BFL)	Flux 2 Klein 9B generation
Flux 2 Klein 9B Preview (BFL)	Flux 2 Klein 9B preview (latest advances)
Flux 2 Klein 4B (BFL)	Flux 2 Klein 4B generation

Finetune

Node	Description
Flux Pro Fill Finetune (BFL)	Inpainting with a finetuned model
Flux Pro 1.1 Ultra Finetune (BFL)	Ultra generation with a finetuned model
Flux Finetune Status (BFL)	Check the status of a finetune job
Flux My Finetunes (BFL)	List all your finetunes
Flux Finetune Details (BFL)	Get details of a specific finetune
Flux Delete Finetune (BFL)	Delete a finetune

Config

Node	Description
Flux Config (BFL)	Override API key, base URL and region per-node
Flux Credits (BFL)	Check your remaining BFL API credits

Utils

Node	Description
Image to Base64 (BFL)	Convert a ComfyUI IMAGE to base64 — choose jpeg (default) or png (lossless, recommended for masks)

Workflow

Example workflows are available in the workflows folder.

Changelog

See CHANGELOG.md.

Contributors

• @pleberer
• @Duanyll

Example