Vella uses conventional HTTP response codes to indicate the success or failure of an API request.
Codes in the 2xx range indicate success. Codes in the 4xx range indicate an error that failed given the information provided (e.g., a required parameter was omitted, etc.). Codes in the 5xx range indicate an error with our servers.

400 - Bad RequestThe request was unacceptable, often due to missing a required parameter.
401 - UnauthorizedNot a valid API key was provided.
402 - Request FailedThe parameters were valid but the request failed.
403 - ForbiddenThe API key doesn't have permission to perform the request.
404 - Not FoundThe requested resource doesn't exist.
429 - Too Many RequestsToo many requests hit the API
500, 502, 503, 504 - Server ErrorsServer error on Vella end