# ComfyUI Flux Klein img2img workflow (API format)

Export a Flux Klein img2img workflow from ComfyUI once and save it as:

```
workflows/comfy/flux_klein_edit_api.json
```

Copy `flux_klein_edit_api.json.example` as a starting skeleton, then replace node IDs and wiring with your exported workflow.

## Export steps

1. Build an img2img workflow in ComfyUI with **Load Image**, prompt encoding, sampler, and **Save Image** nodes.
2. Enable **Dev mode** in ComfyUI settings if needed.
3. Use **Save (API Format)** on the workflow.
4. Save the JSON to `workflows/comfy/flux_klein_edit_api.json`.

## Nodes patched by `comfy_flux_edit`

The module walks workflow nodes by `class_type` and updates:

| class_type | Field | Value |
|------------|-------|-------|
| `LoadImage` | `inputs.image` | Uploaded filename |
| `CLIPTextEncode` / `TextEncode` | `inputs.text` | Step `prompt` |
| `KSampler` | `inputs.denoise`, `inputs.seed` | Step params |

## CPU warning

ComfyUI on CPU can take hours per full-resolution image. Use `max_edge=1024` or lower in the pipeline step for experiments.

## Server

Default URL: `http://127.0.0.1:8188`. Start ComfyUI before running the pipeline step.