GET

/v1/schemas/fal/video/fal-ai%2Fkling-video%2Fo1%2Fstandard%2Fimage-to-video

Accept:

kind inputactivity videohash 4d1aa9d4…extracted Jul 6, 2026version currentsource upstream spec ↗

Request body

4 properties · 2 required · 0 $defs

property	type	description	constraints
start_image_url*	string	Image to use as the first frame of the video.
prompt*	string	Use @Image1 to reference the start frame, @Image2 to reference the end frame.	length ≤ 2500
end_image_url	string	Image to use as the last frame of the video.	nullable
duration	enum	Video duration in seconds.	3 \| 4 \| 5 \| 6 \| 7 \| 8 · +2 more · default: "5"

Validate a payload

before you spend tokens

shell

$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"fal-ai/kling-video/o1/standard/image-to-video","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}