LangChain/LangGraph plugin for LiveKit agents
Project Links
Meta
Author: LiveKit
Requires Python: >=3.10.0
Classifiers
Intended Audience
- Developers
License
- OSI Approved :: Apache Software License
Programming Language
- Python :: 3
- Python :: 3 :: Only
- Python :: 3.11
- Python :: 3.12
Topic
- Multimedia :: Sound/Audio
- Scientific/Engineering :: Artificial Intelligence
LangChain plugin for LiveKit Agents
This plugin integrates capabilites from LangChain within LiveKit Agents
Installation
pip install livekit-plugins-langchain
Usage
Using LangGraph workflows
You can bring over any existing workflow in LangGraph as an Agents LLM with langchain.LLMAdapter. For example:
from langgraph.graph import StateGraph
from livekit.agents import Agent, AgentSession, JobContext
from livekit.plugins import langchain
...
def entrypoint(ctx: JobContext):
graph = StateGraph(...).compile()
session = AgentSession(
vad=...,
stt=...,
tts=...,
)
await session.start(
agent=Agent(llm=langchain.LLMAdapter(graph)),
)
...
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