# LangChain MCP Server

> Installs the LangChain.js library and points to official documentation for building agents and MCP servers.

- Skill: `agentskillexchange/langchain-mcp-server` (Agent Skill)
- Install (CLI): `npx skillmds add agentskillexchange/langchain-mcp-server`
- Raw SKILL.md: https://api.skillmd.com/api/skills/agentskillexchange/langchain-mcp-server/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML, Integrations & APIs, Agent Building, MCP Servers
- Tags: Langchain, Langchainjs, Mcp, Nodejs, Npm
- Author: agentskillexchange (https://skillmd.com/u/agentskillexchange)
- Updated: 2026-08-22
- Page: https://skillmd.com/skills/agentskillexchange/langchain-mcp-server

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# LangChain MCP Server



## Installation

Use the upstream install or setup path that matches your environment:
- You can use npm, pnpm, or yarn to install LangChain.js
- npm install -S langchain or pnpm install langchain or yarn add langchain

Requirements and caveats from upstream:
- For an equivalent Python library, check out [LangChain](https://github.com/langchain-ai/langchain).
- Node.js (ESM and CommonJS) - 20.x, 22.x, 24.x

Basic usage or getting-started notes:
- Just getting started? Check out **[Deep Agents](http://docs.langchain.com/oss/javascript/deepagents/)** — a higher-level package built on LangChain for agents that have built-in capabilites for common usage patterns s...
- [Getting started](https://docs.langchain.com/oss/javascript/langchain/overview): Installation, setting up the environment, simple examples

- Source: https://github.com/langchain-ai/langchainjs
- Extracted from upstream docs: https://raw.githubusercontent.com/langchain-ai/langchainjs/HEAD/README.md

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/langchain-mcp-server/)