Error Codes

Code	HTTP Status	Description
invalid_token	401	API token is invalid or expired
insufficient_scope	403	Token lacks required scope
not_found	404	Requested resource does not exist
content_too_large	413	File exceeds maximum upload size
unsupported_format	415	File format not supported for transcoding
rate_limited	429	Too many requests
transcode_failed	500	Transcoding pipeline error
service_unavailable	503	Service temporarily unavailable

All errors follow the standard envelope:

{
  "status": "error",
  "error": {
    "code": "not_found",
    "message": "Content not found: c_nonexistent",
    "request_id": "req_a1b2c3d4"
  }
}