Changes to Prueba tus credenciales de autenticación

added ErrorErrors0 to the errors response property oneOf list for the response status 401

the errors/oneOf[subschema #1 -> subschema #2] response's property type changed from object to array for status 401

the response property message became required for the status 200

added the required property account_id to the response with the 200 status

added the required property environment to the response with the 200 status

added the required property sandbox_id to the response with the 200 status

deleted the header request parameter X-SECRET-KEY

the endpoint scheme security secretKey was added to the API

api operation id credentials removed and replaced with test_credentials