The Realtime API enables you to build low-latency, multi-modal conversational experiences. It currently supports text and audio as both input and output, as well as function calling. Quickstart The Realtime API is a WebSocket interface that is designed to run on the server. To help you get started quickly, we've created a console demo application that shows some of the features of the API. Overview The Realtime API is a stateful, event-based API that communicates over a WebSocket.