# LiveKit

Open source framework and cloud for building real-time voice AI agents over phone and WebRTC.

LiveKit offers an open source agents framework with Python and Node.js SDKs, plus LiveKit Cloud for deploying agents, telephony, observability and simulations. Developers use it to build custom voice agents that take phone calls or talk inside web and mobile apps. The free Build plan includes one phone number; paid plans add team features and higher limits.

Price: Free plan; paid plans from $50/month plus usage. Site: https://livekit.io/.

Also on the [web page](https://voiceagents.fyi/apps/livekit).