GET

/v1/schemas/fal/video/fal-ai/ltx-2.3/image-to-video/fast?kind=output

Accept:

kind outputactivity videohash 9dc5a332…extracted Jul 6, 2026version currentsource upstream spec ↗

field	recorded source
schema	Source linked above. Source trace `4c3223d694800cda99c2c5e3656448678855530d9e7bf127e43545c062713c3d` { "fetchedAt": 1783329487, "extractorVersion": "1", "verifiedAt": null }

Response body

1 properties · 1 required · 1 $defs

property	type	description	constraints
video*	VideoFile	The generated video file

Types

1 $defs

VideoFileobject

url*	string	The URL where the file can be downloaded from.
width	integer	The width of the video	nullable
fps	number	The FPS of the video	nullable
file_size	integer	The size of the file in bytes.	nullable
file_name	string	The name of the file. It will be auto-generated if not provided.	nullable
height	integer	The height of the video	nullable
content_type	string	The mime type of the file.	nullable
num_frames	integer	The number of frames in the video	nullable
duration	number	The duration of the video	nullable

Validate a payload

before you spend tokens

shell

$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"fal-ai/ltx-2.3/image-to-video/fast","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}