Magento 2 Web API is the key feature of Magento that is used to communicate third-party services with the Magento platform. Basically, it provides a mechanism where developers can create a customer account, product report through web services. Magento Web API framework support REST (Representational State Transfer), SOAP (Simple Object Access Protocol), and GraphQL (Graph Query Language). The merchants can configure any third-party application as a web API by using XML code in the webapi.xml configuration file. Moreover, the web API framework supports field filtering responses to save mobile bandwidth. Along with this, you can run multiple services at once with the help of integration-style web APIs.