OpenAI Realtime API

Create an OpenAI API project and review the current Realtime guide and model pricing. Keep your permanent API key on the server. For a browser prototype, follow the documented Agents SDK and WebRTC setup, using the prescribed session authentication flow. Configure the model, instructions, audio behavior, and any functions your application exposes. Connect microphone input and handle the returned audio and session events in the interface. Test interruptions, missing tool responses, quiet input, and recovery after a disconnected session. Add clear recording controls and decide how your application handles conversation data. Measure usage and latency with real sample conversations before wider rollout. Set project spending limits and review model-specific rates rather than assuming a fixed monthly product fee.