WebSocket is a protocol that enables two-way communication streams over the Internet, allowing developers to capture conversation intelligence insights in real-time. Many popular Real-Time Communications and Engagement companies use WebSockets for establishing multi-member voice, video, or messaging streams. An API for WebSockets enables developers to build applications with real-time insights using artificial intelligence, such as Symbl.ai's Telephony API, which integrates directly into JavaScript software. WebSockets facilitate bi-directional communication without the overhead of HTTP API calls, allowing for millisecond-accurate state synchronization and full-duplex messaging. By separating channels per person and using lossless codecs, developers can achieve optimal results with Symbl.ai's real-time WebSocket API, which enables live transcription in real-time with a simple authentication process.