XMPP (Extensible Messaging and Presence Protocol)

Extensible Messaging and Presence Protocol (XMPP) is an open-standard communication protocol based on XML for message-oriented middleware. It enables real-time exchange of structured data between any two or more network entities. XMPP is widely used for instant messaging, presence information, multi-party chat, voice and video calls, collaboration, and lightweight middleware for the Internet of Things (IoT). Its decentralized and extensible nature makes it robust and flexible for various communication needs.