GET

/v1/schemas/fal/audio/fal-ai/stable-audio-3/small/sfx/base/audio-outpainting?kind=output

Accept:

kind outputactivity audiohash d29b64d2…extracted Jul 6, 2026version currentsource upstream spec ↗

field	recorded source
schema	Source linked above. Source trace `e559f3c567f80807e8a7cbb8ce8e906c0c2dbdf4ed82c3aa3ab157c6d32cf528` { "fetchedAt": 1783331098, "extractorVersion": "1", "verifiedAt": null }

Response body

3 properties · 3 required · 1 $defs

property	type	description
seed*	integer	The random seed used for generation.
prompt*	string	The prompt used for generation.
audio*	File	The generated audio clip.

Types

1 $defs

Fileobject

file_size	integer	The size of the file in bytes.	nullable
content_type	string	The mime type of the file.	nullable
url*	string	The URL where the file can be downloaded from.
file_name	string	The name of the file. It will be auto-generated if not provided.	nullable

Validate a payload

before you spend tokens

shell

$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"fal-ai/stable-audio-3/small/sfx/base/audio-outpainting","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}