GET

/v1/schemas/fal/video/fal-ai%2Fkling-video%2Fv2.1%2Fmaster%2Fimage-to-video

Accept:

kind inputactivity videohash b801fac4…extracted Jul 6, 2026version currentsource upstream spec ↗

Request body

5 properties · 2 required · 0 $defs

property	type	description	constraints
image_url*	string	URL of the image to be used for the video
prompt*	string		length ≤ 2500
cfg_scale	number	The CFG (Classifier Free Guidance) scale is a measure of how close you want the model to stick to your prompt.	0 ≤ n ≤ 1 · default: 0.5
negative_prompt	string		length ≤ 2500 · default: "blur, distort, and low quality"
duration	enum	The duration of the generated video in seconds	5 \| 10 · 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/v2.1/master/image-to-video","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}