GET

/v1/schemas/fal/image/bria/guided-remove-background

Accept:

kind inputactivity imagehash 22d44eda…extracted Oct 13, 2026version currentsource upstream spec ↗

field	recorded source
schema	Source linked above. upstream-spec Source trace `b543054968fb5a93db459569e16d897b0e87d0f41ea43e762a4bfe1c642fd825` { "fetchedAt": 1791867612, "extractorVersion": "1", "verifiedAt": null }

Request body

4 properties · 0 required · 0 $defs

property	type	description	constraints
prompt	string	Optional. Plain words for how to change the default cutout of the photo's obvious subject: add something ('the person with the mat and the plant'), drop something ('the woman at her desk without the lamp') or narrow it ('only the chair'). Everything kept is the original pixels with a new alpha channel. Leave it empty for the plain cutout of the obvious subject.	nullable
image_url	string	Source image as a public URL, a base64 data URI (data:image/png;base64,...) or raw base64-encoded image bytes.	default: "https://labs-assets.bria.ai/api…
sync_mode	boolean	If true, the function waits for the image to be generated and uploaded before returning, so the image is returned directly (base64) instead of via the CDN. Increases latency.	default: false
autocrop	boolean	Tighten the output canvas to the kept content.	default: false

Validate a payload

before you spend tokens

shell

$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"bria/guided-remove-background","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}