Equinix Metal uses conventional HTTP response codes to indicate the success or failure of an API request. In general: 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, a charge failed, etc.). Codes in the 5xx range indicate an error with Equinix Metal's servers (these are rare).

HTTP status code summary

200 - OK Everything worked as expected.
422 - Bad Request The request was unacceptable, often due to missing a required parameter.
401 - Unauthorized No valid API key provided.
404 - Not Found The requested resource doesn't exist.
500, 502, 503, 504 - Server Errors Something went wrong on Equinix Metal's end. (These are rare.)