LangChain OSS
@LangChain_OSS
Ship great agents fast with our open source frameworks – LangChain, LangGraph, and Deep Agents. Maintained by @LangChain.
加入 January 2026
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new MCP spec support is coming soon in @LangChain (and deepagents)
try it out and let us know what you think!
we're adding support for the new MCP spec in @LangChain open source!
the new API is built on top of FastMCP, so you can take advantage of their excellent devx for building MCP servers and clients.
an early version is available in langchain==1.4.0a2; let us know what you think!
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