LangChain Open Source Adds Support for New MCP Spec
LangChain · x · 2026-08-29
LangChain is adding support for the new MCP (Model Context Protocol) spec in its open-source library. The new API is built on top of FastMCP, allowing developers to leverage its excellent developer experience for building MCP servers and clients. An early version is available in langchain==1.4.0a2.
Related event: LangChain Open-Source Version Adds MCP Protocol Support Built on FastMCP(3 posts)→
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