SOAP is Simple Object Access Protocol. SOAP is the standard communication protocol system that permits processes to use different operating systems. These communicate via HTTP and XML. It is a web services technology. SOAP APIs are mainly designed for tasks such as creating, updating, deleting, and recovering data. SOAP API uses the Web Services Description language to describe the functionalities offered by web services. SOAP describes all the functions and the types of data. It builds an XML-based protocol.