Background removal API
Background removal API: secure server workflow
FeyNoBg currently exposes its workflow through the signed-in web product. A public developer API is not yet offered.
The internal API validates authentication, request origin, idempotency key, file size, MIME type, and file signature before it reserves a credit.
Provider credentials never reach the browser. Submission, polling, completion, and credit settlement remain server-side so a browser cannot forge a successful result.
Validated input
JPG, PNG, and WebP signatures are verified, not trusted from filenames.
Bounded retries
Only safe reads and uploads retry, with short limits and visible failures.
Idempotent jobs
Repeating one request key returns the original job instead of charging twice.