XML-RPC

XML-RPC is a protocol that enables remote procedure calls (RPC) using XML-encoded messages transmitted over HTTP. Introduced in the late 1990s, it allows systems to execute functions on a remote server by sending requests formatted in XML and receiving structured responses. XML-RPC is platform-independent, making it suitable for communication between applications built with different programming languages. While it is simple and easy to implement, XML-RPC has largely been replaced by more modern protocols like SOAP and REST due to their enhanced features, flexibility, and scalability. Despite this, XML-RPC remains a foundational technology in the evolution of web services and API communication.