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LangChain · Agent SDKs

LangChain

Build tool-using agents with model integrations and reusable application components.

Languages
Python, TypeScript
API surface
Agent SDK
MCP capability
MCP client

APIs & SDKs

Define agents using model and tool abstractions, then compose application logic around the agent loop. Use the language-specific API reference for implementation.

Explore the developer documentation ↗

Integrations

Model and tool integrations provide access to external services. LangGraph supplies the underlying orchestration capabilities used by LangChain agents.

View framework integration resources ↗

MCP client

MCP support

The Python MCP guide documents MCPAdapter for discovering server tools and using them in an agent. Follow the guide for the lifecycle of the client and its tools.

Evidence scope: Python guide; confirm TypeScript separately. Documentation reviewed; runtime compatibility has not been tested.

Sources & review

Integration notes reviewed . Check the linked documentation for current package versions, language support and authentication requirements.

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Curated starting points