Install LangChain

To install the LangChain package:

pip install -U langchain
# Requires Python 3.10+

uv add langchain
# Requires Python 3.10+

LangChain provides integrations to hundreds of LLMs and thousands of other integrations. These live in independent provider packages.

# Installing the OpenAI integration
pip install -U langchain-openai

# Installing the Anthropic integration
pip install -U langchain-anthropic

# Installing the OpenAI integration
uv add langchain-openai

# Installing the Anthropic integration
uv add langchain-anthropic

See the Integrations tab for a full list of available integrations.

Now that you have LangChain installed, you can get started by following the Quickstart guide.

Connect these docs to Claude, VSCode, and more via MCP for real-time answers.