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Documentation Index

Fetch the complete documentation index at: https://langchain-5e9cc07a-preview-andyye-1778820730-7214c62.mintlify.app/llms.txt

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Comprehensive API reference documentation for the LangChain and LangGraph Python and TypeScript libraries.

Reference sites

https://mintcdn.com/langchain-5e9cc07a-preview-andyye-1778820730-7214c62/fBbpMxi7WRz3OwDW/images/brand/langchain-icon.png?fit=max&auto=format&n=fBbpMxi7WRz3OwDW&q=85&s=8f839be74fbaa7b06641578e180e0227

LangChain

Complete API reference for LangChain JavaScript/TypeScript, including chat models, tools, agents, and more.
https://mintcdn.com/langchain-5e9cc07a-preview-andyye-1778820730-7214c62/fBbpMxi7WRz3OwDW/images/brand/langgraph-icon.png?fit=max&auto=format&n=fBbpMxi7WRz3OwDW&q=85&s=f18680f8385221cd65e1cff4c37dfb6f

LangGraph

Complete API reference for LangGraph JavaScript/TypeScript, including graph APIs, state management, checkpointing, and more.
https://mintcdn.com/langchain-5e9cc07a-preview-andyye-1778820730-7214c62/fBbpMxi7WRz3OwDW/images/brand/deep-agents-icon.png?fit=max&auto=format&n=fBbpMxi7WRz3OwDW&q=85&s=9348895d93de402666bbc7855e92c954

Deep Agents

Build agents that can plan, use subagents, and leverage file systems for complex tasks

LangChain Integrations

LangChain packages to connect with popular LLM providers, vector stores, tools, and other services.

MCP Adapter

Use Model Context Protocol (MCP) tools within LangChain and LangGraph applications.
https://mintcdn.com/langchain-5e9cc07a-preview-andyye-1778820730-7214c62/fBbpMxi7WRz3OwDW/images/brand/deep-agents-icon.png?fit=max&auto=format&n=fBbpMxi7WRz3OwDW&q=85&s=9348895d93de402666bbc7855e92c954

Deep Agents

Build agents that can plan, use subagents, and leverage file systems for complex tasks.