R
rectalogic/langchain-mcp
Model Context Protocol tool support for LangChain
View on GitHub ↗Link checked 2026-11-12 · HTTP 200 · opens the vendor's own site
We have neither an install command nor a public remote endpoint from this repository, so we do not print a config. A made-up one is worse than none. How each client wires MCP up →
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- collected from the abordage/awesome-mcp list · type: MCP server
- Harvest history
- first seen 2026-11-05 · last seen 2026-11-14 · seen 10× · listed by 10 sources
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- score 1,003 · 10 sources · mcp
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We filed it under these tags: MCP 服务. The tags come from the entry itself, not a taxonomy we imposed.
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first catalogued 2026-11-05；last seen 2026-11-14。There is no official certification or quality rating here — we record sources and dates only.
# langchain-mcp
以下摘录自该仓库的 README（片段） · 在 GitHub 读完整 README →
Note: langchain now has a more official implementation langchain-mcp-adapters
Model Context Protocol tool calling support in LangChain.
Create a langchainmcp.MCPToolkit with an mcp.ClientSession,
then await toolkit.initialize() and toolkit.gettools() to get the list of langchaincore.tools.BaseTools.
Example:
https://github.com/rectalogic/langchain-mcp/blob/8fa8445a24755bf91789f52718c32361ed916f46/tests/demo.py#L34-L43
## Demo
You can run the demo against Groq llama-3.1-8b-instant:
sh-session
$ export GROQAPIKEY=xxx
$ uv run tests/demo.py "Read and summarize the file ./LICENSE"
Secure MCP Filesystem Server running on stdio
Allowed directories: [ '/users/aw/projects/rectalogic/langchain-mcp' ]
The file ./LICENSE is a MIT License agreement. It states that the software is provided "as is" without warranty and that the authors and copyright holders are not liable for any claims, damages, or other liability arising from the software or its use.
Model Context Protocol tool calling support in LangChain.
Create a langchainmcp.MCPToolkit with an mcp.ClientSession,
then await toolkit.initialize() and toolkit.gettools() to get the list of langchaincore.tools.BaseTools.
Example:
https://github.com/rectalogic/langchain-mcp/blob/8fa8445a24755bf91789f52718c32361ed916f46/tests/demo.py#L34-L43
## Demo
You can run the demo against Groq llama-3.1-8b-instant:
sh-session
$ export GROQAPIKEY=xxx
$ uv run tests/demo.py "Read and summarize the file ./LICENSE"
Secure MCP Filesystem Server running on stdio
Allowed directories: [ '/users/aw/projects/rectalogic/langchain-mcp' ]
The file ./LICENSE is a MIT License agreement. It states that the software is provided "as is" without warranty and that the authors and copyright holders are not liable for any claims, damages, or other liability arising from the software or its use.
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[](https://anclum.com/en/s/rectalogic-langchain-mcp/)
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