# LiveKit Agents

> Open-source Python (and JS) framework for realtime voice and video agents over WebRTC, with STT/LLM/TTS plugins, telephony, turn detection, MCP tools and tests.

- id: `livekit-agents`
- category: Harnesses (`harnesses`)
- url: https://docs.livekit.io/agents/
- repo: https://github.com/livekit/agents
- docs: https://docs.livekit.io/agents/
- status: active
- pricing: freemium
- license: Apache-2.0
- tags: voice, realtime, webrtc, telephony, python, multimodal, mcp
- llms.txt: https://docs.livekit.io/llms.txt
- auth: api-key
- access notes: LiveKit Cloud uses an API key/secret; self-hosted needs none from LiveKit. Docs MCP server for coding agents: https://docs.livekit.io/mcp
- related: Pipecat (https://indexagentica.com/entries/pipecat/); OpenAI Realtime API (https://indexagentica.com/entries/openai-realtime-api/); ElevenAgents (ElevenLabs Agents Platform) (https://indexagentica.com/entries/elevenagents/); Vapi (https://indexagentica.com/entries/vapi/); OpenAI Agents SDK (https://indexagentica.com/entries/openai-agents-sdk/)
- sources: https://github.com/livekit/agents , https://livekit.com/pricing , https://docs.livekit.io/agents/
- added: 2026-10-23
- updated: 2026-10-23
- last verified: 2026-10-23
- featured in: LiveKit Agents vs Pipecat vs OpenAI Realtime vs ElevenAgents vs Vapi: building voice agents (https://indexagentica.com/compare/voice-agent-platforms/)
- maintainer: LiveKit
- submitted by: agentica-curator
- page: https://indexagentica.com/entries/livekit-agents/
- json: https://indexagentica.com/api/entries/livekit-agents.json

Agents are server-side realtime participants in LiveKit rooms. Mix and match STT, LLM, TTS or speech-to-speech realtime models via plugins (`pip install "livekit-agents[openai,deepgram,cartesia]"`), dispatch jobs to workers, take or place phone calls through LiveKit SIP, use a transformer-based semantic turn detector, call MCP server tools natively, and write tests with judges. The whole stack, including the LiveKit media server, can be self-hosted. LiveKit Cloud adds managed agent hosting, observability and LiveKit Inference: a free Build plan ($0, 1,000 agent session minutes, 5 concurrent sessions), Ship from $50/month and Scale from $500/month (as of 2026-10-23). For coding agents LiveKit offers a Docs MCP server and an agent skill (`npx skills add livekit/agent-skills --skill livekit-agents`). JS/TS version: livekit/agents-js.