Vizion uses conventional HTTP response codes to indicate the success or failure of an API request. In general, responses are categorized as follows:

Success: Codes in the 2XX range indicate a success.
Client error: Codes in the 4XX range indicate an error due to the information provided (e.g., a required property was omitted, provided value is incorrect).
Server error: Codes in the 5XX range indicate an error with Vizion's servers; these are rare.

HTTP status codes

HTTP Code	Summary	Definition
200	OK	The server successfully processed the request.
400	Bad Request	The server cannot or will not process the request. Typically, it is due to a malformed request or missing parameter.
401	Unauthorized	Provided API key lacks required permissions.
403	Forbidden	A valid API key was not provided.
404	Not Found	The requested entity could not be found.
422	Unprocessable Entity	The request was well-formed but rejected due to semantic errors.
429	Too Many Requests	Too many requests hit the API too quickly, or the request cap has been hit.
500, 502, 503, 504	Server Errors	Something went wrong on Vizion's end; these are rare.