Errors

UniXPay REST API 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. Codes in the 5xx range indicate an error with Crypto.com Pay's servers.

Status Code	Description
200 - OK	Everything worked as expected
400 - Bad Request	The request was unacceptable, often due to missing a required parameter
401 - Unauthorized	No valid API key provided
402 - Request Failed	The parameters were valid but the request failed
404 - Not Found	The requested resource doesn't exist
429 - Too Many Requests	Too many requests hit the API too quickly. We recommend an exponential backoff of your requests
422 - Unprocessable Content	The request was well-formed but was unable to be followed due to semantic errors
500, 502, 503, 504 - Server Errors	Something went wrong on our end