LangChain MCP Integration MCP Servers

Tools and frameworks for integrating Model Context Protocol (MCP) with LangChain for agent-based tool selection and execution. Includes LangChain adapters, client-server implementations, and patterns for connecting MCP servers to LangChain agents. Does NOT include standalone MCP servers, domain-specific integrations (Slack, Notion, etc.), or LangChain usage without MCP focus.

There are 31 langchain mcp integration servers tracked. 1 score above 70 (verified tier). The highest-rated is langchain-ai/langchain-mcp-adapters at 81/100 with 3,411 stars. 1 of the top 10 are actively maintained.

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# Server Score Tier
1 langchain-ai/langchain-mcp-adapters

LangChain 🔌 MCP

81
Verified
2 hideya/langchain-mcp-tools-py

MCP to LangChain Tools Conversion Utility / Python

59
Established
3 Chen-zexi/open-ptc-agent

An open source implementation of code execution with MCP (Programatic Tool Calling)

52
Established
4 guinacio/langchain-mcp-client

This Streamlit application provides a user interface for connecting to MCP...

52
Established
5 datalayer/langchain-mcp-client

🦜🔗 LangChain Model Context Protocol (MCP) Client

47
Emerging
6 xiaotonng/lc2mcp

Convert LangChain tools to FastMCP tools

47
Emerging
7 hideya/mcp-client-langchain-py

Simple MCP Client CLI Implementation Using LangChain ReAct Agent / Python

46
Emerging
8 hideya/langchain-mcp-tools-ts-usage

MCP Tools Usage From LangChain ReAct Agent / Example in TypeScript

45
Emerging
9 langchain-ai/langchainjs-mcp-adapters

** THIS REPO HAS MOVED TO...

44
Emerging
10 laxmimerit/MCP-Mastery-with-Claude-and-Langchain

Build MCP servers & clients with Python, Streamlit, ChromaDB, LangChain,...

43
Emerging
11 chrisleekr/langchain-playground

A playground for LangChain.js, LangGraph, NewRelic GraphQL, Sentry, Slack,...

35
Emerging
12 prsdm/langgraph-mcp

LangGraph agent template with MCP.

32
Emerging
13 hirokiyn/mcp-langgraph

LangGraph agent tutorial adapted to use MCP servers.

28
Experimental
14 guangxiangdebizi/PolicyAgents

基于 LangGraph + LangChain + MCP 的政策文本深度分析工具,提供极致的用户交互体验。

27
Experimental
15 baixianger/langchain-MCP

MCP server for LangChain, LangGraph & DeepAgents knowledge + LangGraph agent...

27
Experimental
16 lambdaworks/langchain-mcp-integration

LangChain integration with MCP tools.

26
Experimental
17 shams858/code-execution-with-mcp

Langchain agent that generates and executes Python code to interact with...

26
Experimental
18 vasstavkumar/mcp-llm-fastapi-ui

A model that uses streamlit as frontend and MCP server(notion and postgres...

22
Experimental
19 paddumelanahalli/MCP-Personal-Assistant

An autonomous Morning Briefing agent built with Gemini 2.0 Flash and the...

22
Experimental
20 JPaulDuncan/SharpInfer

A pure C# LLM inference engine built from scratch — no Python, no llama.cpp...

21
Experimental
21 IshaanLabs/Model-Context-Protocol-MCP-Demo-with-langchain-MCP-ADAPTERS-Ollama

Demo of implementation of MCP using Langchain MCP Adapters and Ollama

20
Experimental
22 stevenyin0x/LLM-Agents-MCP-playground

This is a hands-on repo for learning and building LLM apps, agents, MCP...

15
Experimental
23 Pavansomisetty21/LangGraph-MCP-Agent

In this we implement Model Context Protocol with langraph agentic features

13
Experimental
24 CeerDecy/mcp-agent

MCP Agent is a framework that integrates MCP tools with LLM clients. It...

13
Experimental
25 AmirHashmi017/MCP-Server-And-LangGraph-Agent

MCP Server & Agentic Workflows is a multi-system AI platform built under...

13
Experimental
26 neeranzan/langchain-mcp-integration

This sample project creates AI agent using langchain. The agent connects...

13
Experimental
27 viniciusfinger/MCP-server-with-langchain-client

LangChain + LangGraph client using tools from a MCP server

12
Experimental
28 mdownes/ai-langchain-mcp

Repository to show how to enter a prompt and a langchain agent will choose...

12
Experimental
29 SyedAanif/mcp-langchain

Build MCP client-server using mcp and langchain adapters

12
Experimental
30 wassupjay/MCP-server-tool-calling-langChain

MCP with langchain

11
Experimental
31 arunkumar201/learning-ai

 Learning AI

11
Experimental