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Documentation Index

Fetch the complete documentation index at: https://langchain-5e9cc07a-preview-opensw-1779463815-aea61a8.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-opensw-1779463815-aea61a8/fNSiJ6IvEWBCyzH-/images/brand/langchain-icon.png?fit=max&auto=format&n=fNSiJ6IvEWBCyzH-&q=85&s=b3b9ee179911b5a41c0cd5ce237cc59a

LangChain

Complete API reference for LangChain JavaScript/TypeScript, including chat models, tools, agents, and more.
https://mintcdn.com/langchain-5e9cc07a-preview-opensw-1779463815-aea61a8/fNSiJ6IvEWBCyzH-/images/brand/langgraph-icon.png?fit=max&auto=format&n=fNSiJ6IvEWBCyzH-&q=85&s=99d470bea7899d7c4c16816b901422e9

LangGraph

Complete API reference for LangGraph JavaScript/TypeScript, including graph APIs, state management, checkpointing, and more.
https://mintcdn.com/langchain-5e9cc07a-preview-opensw-1779463815-aea61a8/fNSiJ6IvEWBCyzH-/images/brand/deep-agents-icon.png?fit=max&auto=format&n=fNSiJ6IvEWBCyzH-&q=85&s=8aeed9ef519ec132d87f6f1f2c0e2c42

Deep Agents

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

MCP Adapter

Use Model Context Protocol (MCP) tools within LangChain and LangGraph applications.
https://mintcdn.com/langchain-5e9cc07a-preview-opensw-1779463815-aea61a8/fNSiJ6IvEWBCyzH-/images/brand/deep-agents-icon.png?fit=max&auto=format&n=fNSiJ6IvEWBCyzH-&q=85&s=8aeed9ef519ec132d87f6f1f2c0e2c42

Deep Agents

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