GET
/v1/schemas/fal/video/fal-ai%2Fkling-video%2Fo3%2Fstandard%2Fvideo-to-video%2Freference
Accept:
Request body
8 properties · 2 required · 1 $defs| property | type | description | constraints |
|---|---|---|---|
| prompt* | string | Text prompt for video generation. Reference video as @Video1. | length ≤ 2500 |
| video_url* | string | Reference video URL. Only .mp4/.mov formats, 3-15s duration, 720-3840px resolution, max 200MB. | |
| elements | KlingV3ImageElementInput[] | Elements (characters/objects) to include. Reference in prompt as @Element1, @Element2. | nullable |
| aspect_ratio | enum | Aspect ratio. | auto | 16:9 | 9:16 | 1:1 · default: "auto" |
| shot_type | const | The type of multi-shot video generation. | "customize" · default: "customize" |
| image_urls | string[] | Reference images for style/appearance. Reference in prompt as @Image1, @Image2, etc. Maximum 4 total (elements + reference images) when using video. | nullable |
| keep_audio | boolean | Whether to keep the original audio from the reference video. | default: true |
| duration | enum | Video duration in seconds (3-15s for reference video). | 3 | 4 | 5 | 6 | 7 | 8 · +7 more · nullable |
Validate a payload
before you spend tokensshell
$ curl -X POST https://modelschemas.com/v1/validate \
-d '{"provider":"fal","endpointId":"fal-ai/kling-video/o3/standard/video-to-video/reference","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}