# Genjutsu Motion Transfer

Genjutsu Motion Transfer creates videos from source motion and reference images. Guide short-form video edits with optional prompts and 480p or 720p output.

## API Information

- **Model Slug:** genjutsu-motion-transfer
- **Branded URL:** https://www.eachlabs.ai/higgsfield/higgsfield/genjutsu-motion-transfer
- **Provider:** Higgsfield
- **Category:** Video to Video
- **Output Type:** video
- **Status:** active
- **Base Cost:** $0.159–$0.3405 per second, depending on resolution
- **Interactive Demo:** https://www.eachlabs.ai/ai-models/genjutsu-motion-transfer

## Pricing

- **Charge Type:** dynamic
- **Estimate:** $0.159–$0.3405 per second, depending on resolution
- **Pricing Details:** 480p: $0.159
- **Pricing Details:** 720p (default): $0.3405

## Input Schema

| Parameter | Type | Required | Default | Constraints | Description |
|-----------|------|----------|---------|-------------|-------------|
| video_url | string | Yes | - | - | Source video URL. Minimum duration is 4 seconds; videos longer than 30 seconds are trimmed to 30 seconds. |
| image_urls | array | Yes | - | - | One to eight ordered reference image URLs for motion transfer. |
| prompt | string | No | - | - | Optional instructions for motion transfer. Leave blank to use only the source video and reference images. |
| resolution | string | No | 720p | 720p, 480p | Output resolution: 480p costs $0.159 per output second; 720p costs $0.3405 per output second (default). |

## Example Request

```bash
curl -X POST https://api.eachlabs.ai/v1/prediction/ \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "genjutsu-motion-transfer",
  "input": {
    "image_urls": [
      "https://cdn-us.eachlabs.ai/defaults/507b1b74be064da3a51f0cc9d9134f8e.png",
      "https://cdn-us.eachlabs.ai/defaults/77a8e0ba7bec4785b386e729bcdb3a64.png"
    ],
    "video_url": "https://cdn-us.eachlabs.ai/defaults/27d176a28e944232a2f6f6406d795b76.mp4"
  }
}'
```

## Output Schema

Response returned by `GET /v1/prediction/{id}` when the job completes:

```json
{
  "status": "success",
  "predictionID": "string",
  "output": "string (URL of generated video)",
  "metrics": {
    "predict_time": "number (seconds)"
  }
}
```

## Polling

```bash
curl https://api.eachlabs.ai/v1/prediction/{PREDICTION_ID} \
  -H "Authorization: Bearer YOUR_API_KEY"
```

| Status | Meaning |
|--------|---------|
| `processing` | Still running — poll again |
| `success` | Done — read `output` |
| `error` | Failed — read `message` / `details` |

## Webhook (alternative to polling)

Pass `"webhook_url": "https://your.host/path"` in the create request. Eachlabs POSTs this payload when the job ends:

```json
{
  "exec_id": "prediction-uuid",
  "status": "succeeded",
  "output": "https://...",
  "error": ""
}
```

`status` is `"succeeded"` or `"failed"`. `exec_id` equals the `predictionID` from create. Return 2xx within 30 seconds.

## Errors

Error body: `{ "status": "error", "message": "...", "details": "..." }`

| Code | Meaning |
|------|---------|
| `400` | Invalid input |
| `401` | Missing / invalid `Authorization` bearer token |
| `404` | Unknown model or prediction id |
| `429` | Rate limit — 100 creates / min, 10 concurrent per key |
| `5xx` | Retry with backoff |

## Usage Notes

- API Base URL: `https://api.eachlabs.ai/v1`
- Authentication: send `Authorization: Bearer YOUR_API_KEY`. Generate a key from the Eachlabs dashboard at https://www.eachlabs.ai/dashboard/api-keys.
- File-typed parameters (`*_url`, `image_url`, `video_url`, `audio_url`, etc.) accept publicly-reachable HTTPS URLs only. Upload your asset first (GCS / S3 / your CDN) and pass the resulting URL. Data-URIs and localhost URLs are rejected.
- For structured parameters (arrays / objects) send real JSON values, not stringified payloads.
- Monetary values are reported in USD; per-token / per-megapixel rates may be billed in micro-cents internally.
- Prefer `webhook_url` over polling for long-running predictions — see the Webhook Callback section.