Install LangChain ↗

Documentation Index#

Fetch the complete documentation index at: https://docs.langchain.com/llms.txt Use this file to discover all available pages before exploring further.

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.

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