Errors

An error answers with a JSON body {"error": "...", "code": "..."}. A refused upload is not kept and costs nothing.

Status	Code	When
400	INVALID_REQUEST	A field is missing or invalid; error names it.
400	ASSET_URL_INVALID	The url is not an https link, or carries a user name or password.
400	ASSET_URL_BLOCKED	The url points to a private or reserved address.
401		The API key is missing, wrong, disabled or expired.
403	API_PLAN_REQUIRED	The workspace is not on the Creator or Pro plan.
403	STORAGE_LIMIT_REACHED	The workspace has used its storage.
404	ASSET_NOT_FOUND	No asset with this id in this workspace.
413	FILE_TOO_LARGE	The file is larger than 50 MB.
415	UNSUPPORTED_AUDIO_FORMAT	The file is not an MP3.
422	ASSET_DOWNLOAD_FAILED	The url could not be downloaded: error gives the status it answered, a timeout, or why it could not be reached.
422	AUDIO_UNREADABLE	The audio could not be read.
422	AUDIO_TOO_SHORT	The audio is shorter than 3 seconds.
422	AUDIO_TOO_LONG	The audio is longer than 30 minutes.
429	UPLOAD_RATE_LIMITED	The workspace sent 60 uploads in this hour. Wait as Retry-After says. See Upload rate.
429	RATE_LIMITED	Too many requests; wait as Retry-After says.