Open-source WebRTC infrastructure for building, deploying, and scaling realtime voice, video, and physical AI agents.
LiveKit homepage — build voice, video, and physical AI
1 / 2Overview
What is LiveKit?
Realtime infrastructure for voice, video, and AI agents.
LiveKit is an open-source platform for building voice, video, and physical AI agents. Its server is a scalable, distributed WebRTC SFU that moves realtime audio, video, and data between people, devices, and AI models, with SDKs and agent frameworks in Python and Node.js.
- Code-first realtime voice agents with STT, LLM, TTS, and turn detection bundled
- LiveKit Inference: models without per-provider API keys
- LiveKit Cloud for deployment, scaling, and observability
- Telephony with phone numbers and SIP integration
Start building with a free account — no credit card required — with 1,000 free agent session minutes monthly.
Platforms and languages
LiveKit Availability
Platforms
Languages
Capabilities
LiveKit Key Features
Open-source agents framework
Build and test agents in Python or Node.js; the server is an open-source, scalable WebRTC SFU.
Inference gateway
Unified access to TTS, LLM, and STT models with no per-provider API keys.
LiveKit Cloud
Deploy and scale agents on global realtime infrastructure with deployment and observability built in.
Telephony
Phone numbers and SIP integration for agents that make and receive calls.
Full-stack observability
End-to-end tracing and diagnostics for every agent session.
Best for
Who uses LiveKit?
Developers building realtime voice and video AI agents
Build, deploy, and scale voice agents with open-source WebRTC infrastructure
Plans and access
LiveKit Pricing
Freemium
Common questions
LiveKit FAQs
What is LiveKit?
LiveKit is an open-source WebRTC platform for building realtime voice, video, and physical AI agents, with an agents framework, an inference gateway, telephony, and a managed cloud.
Is LiveKit free?
You can start with a free account — no credit card required — including 1,000 free agent session minutes per month. Paid plans add more minutes and team features.
Can I self-host LiveKit?
Yes — the LiveKit server is open source (Apache-2.0) and can be self-hosted with Docker or Kubernetes, or you can use managed LiveKit Cloud.
What can I build with LiveKit Agents?
Code-first realtime voice agents in Python or Node.js, with STT, LLM, TTS, turn detection, tool usage, and telephony bundled in the framework.
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