curl --request POST \
  --url https://api.ttapi.io/novelai/image-to-image \
  --header 'Content-Type: application/json' \
  --header 'TT-API-KEY: <api-key>' \
  --data '
{
  "prompt": "<string>",
  "model": "nai-diffusion-4-5-full",
  "image": "https://xxx.png",
  "n": [
    "1",
    "2",
    "3",
    "4"
  ],
  "width": "1024",
  "height": "1024",
  "seed": "<string>",
  "steps": "23",
  "scale": "5",
  "negative_prompt": "<string>",
  "quality_toggle": "true",
  "sampler": "Euler Ancestral",
  "noise_schedule": "karras",
  "noise": 0,
  "strength": 0.7,
  "character_prompts": [
    {
      "prompt": "<string>",
      "center": {
        "x": 0.5,
        "y": 0.5
      },
      "uc": "blurred, extra accessories"
    }
  ],
  "vibe_transfer": [
    {
      "image": "https://example.com/ref1.jpg",
      "strength": 0.6
    }
  ],
  "character_reference": [
    {
      "image": "https://example.com/ref2.jpg",
      "type": "character&style",
      "strength": 1,
      "fidelity": 0
    }
  ],
  "hook_url": "<string>"
}
'

{
  "status": "SUCCESS",
  "message": "success",
  "data": {
    "job_id": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
  }
}