GET

/v1/schemas/fal/video/fal-ai%2Fkling-video%2Fv3%2Fstandard%2Ftext-to-video

kind inputactivity videohash e14b2857extracted Jul 6, 2026version currentsource upstream spec ↗

Request body

8 properties · 0 required · 1 $defs
propertytypedescriptionconstraints
cfg_scalenumberThe 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
promptstringText prompt for video generation. Either prompt or multi_prompt must be provided, but not both.length ≤ 2500 · nullable
aspect_ratioenumThe aspect ratio of the generated video frame16:9 | 9:16 | 1:1 · default: "16:9"
shot_typeenumThe type of multi-shot video generation. 'intelligent' lets the model automatically determine shot structure.customize | intelligent · default: "customize"
negative_promptstringlength ≤ 2500 · default: "blur, distort, and low quality"
multi_promptKlingV3MultiPromptElement[]List of prompts for multi-shot video generation. If provided, overrides the single prompt and divides the video into multiple shots with specified prompts and durations.nullable
durationenumThe duration of the generated video in seconds3 | 4 | 5 | 6 | 7 | 8 · +7 more · default: "5"
generate_audiobooleanWhether to generate native audio for the video. Supports Chinese and English voice output. Other languages are automatically translated to English. For English speech, use lowercase letters; for acronyms or proper nouns, use uppercase.default: true

Validate a payload

before you spend tokens
shell
$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"fal-ai/kling-video/v3/standard/text-to-video","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}