LangChain Python API Reference

Welcome to the LangChain Python API reference. This is a reference for all langchain-x packages.

For user guides see https://python.langchain.com.

For the legacy API reference hosted on ReadTheDocs see https://api.python.langchain.com/.

Base packages

Core

langchain-core: 0.3.58

core/index.html

Langchain

langchain: 0.3.25

langchain/index.html

Text Splitters

langchain-text-splitters: 0.3.8

text_splitters/index.html

Community

langchain-community: 0.3.23

community/index.html

Experimental

langchain-experimental: 0.3.5rc1

experimental/index.html

Integrations

OpenAI

langchain-openai 0.3.16

openai/index.html

Anthropic

langchain-anthropic 0.3.12

anthropic/index.html

Google VertexAI

langchain-google-vertexai 2.0.21

google_vertexai/index.html

AWS

langchain-aws 0.2.22

aws/index.html

Huggingface

langchain-huggingface 0.1.2

huggingface/index.html

MistralAI

langchain-mistralai 0.2.10

mistralai/index.html

See the full list of integrations in the Section Navigation.