# LiveKit Agents

> Open-source Python framework for building realtime voice and multimodal AI assistants

LiveKit Agents is an open-source framework designed to build programmable, server-side voice and multimodal AI participants. It coordinates real-time audio transport with plug-and-play speech-to-text, LLM, and text-to-speech providers alongside voice activity detection. It solves the hard parts of conversational AI, including low latency, interruption handling, and room-level media routing.

Website: https://github.com/livekit/agents

## What it is for

- Build real-time voice bots for sales training and customer roleplay simulations
- Assemble custom voice assistants using modular STT, LLM, and TTS models
- Handle live conversational voice over WebRTC with automatic interruption detection
- Create multimodal agents that can process live video and audio feeds simultaneously

## Features

- Modular plugin ecosystem for STT, LLM, and TTS providers like OpenAI, Deepgram, and Cartesia
- Built-in voice activity detection (VAD) and turn-taking handling
- LiveKit WebRTC infrastructure integration for low-latency audio and video delivery
- Support for multi-agent handoffs and warm transfers
- Interactive development testing using the LiveKit Agents Playground

## Pricing

Open source. Free and open source under Apache-2.0; LiveKit Cloud provides paid managed infrastructure

## Details

- Type: GitHub repo
- Category: [AI](https://xiry.app/topics/ai.md)
- Topic: [Voice AI](https://xiry.app/topics/ai/voice-ai.md)
- Open source: yes
- Platforms: Code library, Linux, macOS, Windows, Self-hosted
- For: Developers building real-time conversational voice and video AI applications in Python
- Alternative to: Vapi, Retell AI, Daily Bots
- Tags: voice ai, webrtc, llm, agents, python, stt, tts

## Why it was saved

- [@prestonrhodes, 24 May 2025](https://www.instagram.com/reel/DKC2s-KgQvC/): Enables developers to quickly assemble low-latency voice bots using modular STT (Deepgram), LLM (OpenAI), and TTS (Cartesia) pipelines with built-in voice activity detection and interruption handling.

## Compare

- [Alternatives to Vapi](https://xiry.app/alternatives/vapi.md)
- [Alternatives to Retell AI](https://xiry.app/alternatives/retell-ai.md)

## Related

- [ElevenLabs Conversational AI](https://xiry.app/resources/elevenlabs-conversational-ai): Platform for building and deploying interactive voice AI agents. (Web app, Freemium)
- [Miso-TTS](https://xiry.app/resources/miso-tts): Open-source emotive text-to-speech foundation model with low conversational latency. (AI model, Open source)
- [Open-Source Real-Time Voice Agent Stack](https://xiry.app/resources/open-source-real-time-voice-agent-stack): A low-cost, open-source stack for building real-time AI voice assistants (Tip, Open source)
- [OpenHome](https://xiry.app/resources/openhome): Platform and SDK for building custom AI voice agents and smart devices (Web app, Freemium)
- [Synthflow](https://xiry.app/resources/synthflow): No-code platform to build, test, and deploy conversational voice AI agents (Web app, Freemium)
- [AutoGPT](https://xiry.app/resources/autogpt): Open-source platform and framework for building autonomous AI agents (GitHub repo, Freemium)

Updated 3 October 2026. Page: https://xiry.app/resources/livekit-agents

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