GET

/v1/schemas/fal/image/fal-ai/flux-kontext/dev

kind inputactivity imagehash 7c875640…extracted Nov 13, 2026version currentsource upstream spec ↗
fieldrecorded source
schemaSource linked above.

upstream-spec

Source trace
183ed1fd22428aa21cd99931b0e86e70b97862a8c3b3703fe708626bca0bde0e
{
  "fetchedAt": 1794546001,
  "extractorVersion": "2",
  "verifiedAt": null
}

Request body

11 properties · 2 required · 0 $defs
propertytypedescriptionconstraints
image_url*stringThe URL of the image to edit.
prompt*stringThe prompt to edit the image.
output_formatenumOutput formatjpeg | png · default: "jpeg"
guidance_scalenumberThe CFG (Classifier Free Guidance) scale is a measure of how close you want the model to stick to your prompt when looking for a related image to show you.1 ≤ n ≤ 20 · default: 2.5
accelerationenumThe speed of the generation. The higher the speed, the faster the generation.none | regular | high · default: "none"
sync_modebooleanIf `True`, the media will be returned as a data URI and the output data won't be available in the request history.default: false
num_inference_stepsintegerThe number of inference steps to perform.10 ≤ n ≤ 50 · default: 28
seedinteger The same seed and the same prompt given to the same version of the model will output the same image every time. nullable
num_imagesintegerThe number of images to generate.1 ≤ n ≤ 4 · default: 1
resolution_modeenumDetermines how the output resolution is set for image editing. - `auto`: The model selects an optimal resolution from a predefined set that best matches the input image's aspect ratio. This is the recommended setting for most use cases as it's what the model w…auto | match_input | 1:1 | 16:9 | 21:9 | 3:2 · +7 more · default: "match_input"
enable_safety_checkerbooleanIf set to true, the safety checker will be enabled. Disabling it requires account authorization; unauthorized requests are always checked, and images flagged as unsafe are returned as black images.default: true

Validate a payload

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