MCP To LangChain Tools Conversion Utility / TypeScript

@hideya

代码仓库主页

基本信息

分类

AI 与智能体

许可证

MIT

传输方式

stdio

作者

hideya

关于 MCP To LangChain Tools Conversion Utility / TypeScript

MCP to LangChain Tools Conversion Utility / TypeScript

#nodejs #typescript #mcp #npm-package #langchain#langchain-typescript#tool-calling #modelcontextprotocol #mcp-client

MCP To LangChain Tools Conversion Utility / TypeScript 配置

暂无标准配置

该服务器的 README 中没有可解析的 MCP 配置块，请前往代码仓库查看安装说明。

代码仓库

MCP To LangChain Tools Conversion Utility / TypeScript 工具

工具列表暂未提供

当前收录暂时没有可展示的工具列表，不代表服务没有工具。请查阅项目文档了解支持的能力。

工具是从 README 中自动提取的。维护者可以在 ## Tools 标题下列出工具,即可填充这部分内容。

概览

What is MCP To LangChain Tools Conversion Utility / TypeScript?

A lightweight TypeScript library that converts MCP (Model Context Protocol) server tools into LangChain-compatible StructuredTool objects. It allows developers to integrate any MCP server—local or remote—into LangChain agents and chains with minimal configuration.

How to use MCP To LangChain Tools Conversion Utility / TypeScript?

Install via npm i @h1deya/langchain-mcp-tools, then call convertMcpToLangchainTools() with an McpServersConfig object that mirrors the mcpServers structure from Claude for Desktop. The function returns an array of LangChain tools and a cleanup callback. Use the tools with LangChain models and always invoke cleanup() when done.

Key features of MCP To LangChain Tools Conversion Utility / TypeScript

Converts multiple MCP servers into LangChain tools in parallel
LLM provider-specific schema transformations (Gemini, OpenAI, etc.)
Supports local stdio and remote HTTP, SSE, and WebSocket MCP servers
Automatic transport selection and explicit configuration
Stderr redirection and working directory control for local servers
Concurrent cleanup with error handling

Use cases of MCP To LangChain Tools Conversion Utility / TypeScript

Integrate filesystem, fetch, and search MCP tools into a LangChain agent
Combine public and private MCP servers (Brave Search, GitHub, Notion) in one application
Quickly experiment with custom MCP servers in a LangChain prototype
Access the growing ecosystem of 2000+ MCP servers from LangChain

常见问题

What are the prerequisites?

Node.js 18+. Optional: npm 7+ for Node.js-based local MCP servers, and `uv` (`uvx`) for Python-based local MCP servers.

Does it support remote MCP servers?

Yes. It supports Streamable HTTP, SSE, and WebSocket transports. Transport is auto-detected or can be set explicitly via a `type` or `transport` field.

What are the known limitations?

Only text results of tool calls are supported—image or other content types are filtered out. Only the MCP Tools feature is implemented; Resources, Prompts, and Sampling are not supported.

How does the library handle schema compatibility?

When the `llmProvider` option is specified, the library performs provider-specific JSON schema transformations to prevent compatibility issues (e.g., for Google Gemini or OpenAI). Set it if you encounter schema-related warnings or errors.

How does cleanup work?

The `cleanup` function closes all MCP server connections concurrently and logs any failures. It continues cleanup of remaining servers even if some fail. Always call it in a `finally` block after using the tools.

AI 与智能体分类下的更多 MCP 服务器

DatePhotos.AI

Jacob Yang

Free MCP server for dating profiles. Look up the official photo rules and AI-photo policies of Tinder, Hinge and Bumble — photo limits, verification, what gets you banned — each quoted from the app's own guidelines wi

q-ring

I4cTime

Quantum-inspired keyring for AI coding agents. Secure secrets with superposition, entanglement, tunneling, and teleportation — CLI + 44 MCP tools.

scvd.store

seancrecord

scvd.store is an evidence observatory for agentic commerce. Independent signed observation of what other people's endpoints, artifacts and payments actually did among other things. USDC on Base, Arbitrum One, World Chain

Nova Data Analytics

nova-data-analytics

Amazon Seller Central MCP server. Connect Seller Central, Vendor Central and Amazon Ads to Claude, ChatGPT, Gemini or Cursor, and ask for net profit per SKU with your own COGS, VAT and FBM shipping costs, PPC down to the

OpenZiti / LLM-Gateway

openziti

NetFoundry LLM Gateway is an OpenAI-compatible API proxy that routes requests across multiple LLM providers using zero-trust networking. Zero trust LLM gateway. OpenAI-compatible proxy with semantic routing and load bala