An open-source framework for building production-grade real-time voice, video, and multimodal AI agents in Python or Node.js.
LiveKit Agents is an open-source framework that lets developers build programmable, multimodal AI agents that participate in real-time sessions as full audio/video participants. The framework supports VoicePipelineAgent for STT/LLM/TTS chaining and MultimodalAgent for direct audio-to-audio processing. It includes a custom transformer-based turn detection model, built-in agent server orchestration, load balancing, Kubernetes compatibility, multi-agent handoff, and native tool-calling support. Agents can process and produce output across voice, video, text, and data modalities, with over 200 model integrations.
Building voice AI customer service agents
Creating multimodal virtual assistants with real-time video
Developing AI-powered telephony systems
Orchestrating multi-agent workflows
Reduced voice agent development time from months to days
Lower infrastructure management overhead
Improved conversational quality through state-of-the-art turn detection
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