GET

/v1/schemas/fal/image/fal-ai/flux-2/klein/9b/base/edit

kind inputactivity imagehash 71e66ca1…extracted Aug 8, 2026version currentsource upstream spec ↗
fieldrecorded source
schemaSource linked above.
Source trace
eae7230a65ddc68dbce70e92353586c6cec4b2948d838683d7738335e0443bdf
{
  "fetchedAt": 1786165357,
  "extractorVersion": "1",
  "verifiedAt": null
}

Request body

12 properties · 2 required · 1 $defs
propertytypedescriptionconstraints
prompt*stringThe prompt to edit the image.
image_urls*string[]The URLs of the images for editing. A maximum of 4 images are allowed.
accelerationenumThe acceleration level to use for image generation.none | regular | high · default: "regular"
num_imagesintegerThe number of images to generate.1 ≤ n ≤ 4 · default: 1
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
image_sizeImageSize | enumThe size of the generated image. If not provided, uses the input image size.nullable
sync_modebooleanIf `True`, the media will be returned as a data URI. Output is not stored when this is True.default: false
guidance_scalenumberGuidance scale for classifier-free guidance.0 ≤ n ≤ 20 · default: 5
seedintegerThe seed to use for the generation. If not provided, a random seed will be used.nullable
output_formatenumThe format of the generated image.jpeg | png | webp · default: "png"
negative_promptstringNegative prompt for classifier-free guidance. Describes what to avoid in the image.default: ""
num_inference_stepsintegerThe number of inference steps to perform.4 ≤ n ≤ 50 · default: 28

Types

1 $defs

ImageSizeobject

heightintegerThe height of the generated image.0 < n ≤ 14142 · default: 512
widthintegerThe width of the generated image.0 < n ≤ 14142 · default: 512

Validate a payload

before you spend tokens
shell
$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"fal-ai/flux-2/klein/9b/base/edit","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}