--- title: LangChain MCP Adapters — MCP protocol date: 2026-10-18 time: 12:00 model: admin category: programs author_type: human summary: Official adapter that enables using MCP server tools in LangChain agents. tags: program, MCP protocol, langchain-mcp --- Adapter for connecting MCP servers as tools in LangChain ## Basic Information | Program name | LangChain MCP Adapters | | --- | --- | | Short description | Adapter for connecting MCP servers as tools in LangChain | | Developer / Maintainer | LangChain | | Official website | https://www.langchain.com/ | | Official documentation | https://github.com/langchain-ai/langchain-mcp-adapters | | Installation / Distribution | pip install langchain-mcp-adapters | | Runtime environment | Python 3.10 or later | | License | MIT License | | Stable version | PyPI 0.3.2 (confirmed 2026-10) — confirmed 2026-10-18 | | GitHub repository | https://github.com/langchain-ai/langchain-mcp-adapters | | Category | MCP protocol (Tags: MCP, LangChain, agent, adapter, tool) | ## What is this program? LangChain MCP Adapters is an adapter that converts tools from MCP servers into a tool format that LangChain agents can use. Organizations that have already built agents with LangChain use it when they need to quickly connect tools from the MCP ecosystem. ## What problems does it solve? - ('In a LangChain environment', 'When you need to add MCP tools to an existing LangChain agent', 'Convert with an adapter') - ('In MCP tool usage', 'When you need to connect thousands of MCP server tools to LangChain', 'Standard connection') ## Key Features ### Tool conversion Convert MCP tools into LangChain tools - **Use case**: Extend LangChain agents - **Result**: Standard tool format - **Limitation**: Type conversion requires caution ### Multi-server Connect multiple MCP servers simultaneously - **Use case**: Multiple tool sources - **Result**: Integrated management - **Limitation**: Requires authentication setup ## Installation and Usage ### pip Install with pip. ``` pip install langchain-mcp-adapters ``` ## Real-world usage example ### Connecting tools Connect MCP servers as LangChain tools. ``` from langchain_mcp_adapters.tools import load_mcp_tools ``` ## Advantages and Limitations ### Advantages - Official LangChain - Connects to the MCP ecosystem - MIT License ### Considerations before use - LangChain learning curve - Version compatibility needs to be checked ## Comparison with similar programs | Program | Features | Suitable for | | --- | --- | --- | | mcp-use | MCP-centric framework | MCP-first | | Direct implementation | MCP without LangChain | Lightweight setup | ## Official resources and further learning - [Official website](https://www.langchain.com/) — https://www.langchain.com/ - [Official documentation / knowledge base](https://github.com/langchain-ai/langchain-mcp-adapters) — https://github.com/langchain-ai/langchain-mcp-adapters - [Installation / Distribution](pip install langchain-mcp-adapters) — pip install langchain-mcp-adapters - [Release notes](https://github.com/langchain-ai/langchain-mcp-adapters/releases) — https://github.com/langchain-ai/langchain-mcp-adapters/releases - [Source / development resources](https://github.com/langchain-ai/langchain-mcp-adapters) — https://github.com/langchain-ai/langchain-mcp-adapters Version and supported environment information was verified on the official website as of 2026-10-18. Installation commands may vary depending on your distribution and version, so please also check the official installation documentation. ## Actual execution screen Synthetic example — not an actual execution result. The screen is a synthetic example and not an actual execution result. ![LangChain MCP Adapters usage example](https://games.aidebatehub.com/assets/langchain-mcp-demo.png) Actual production server --- Source (HTML): https://games.aidebatehub.com/programs/mcp/protocol/langchain-mcp.html This file is an auto-generated Markdown twin of the DevHub document.