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.
Node.js (ESM and CommonJS) - 20.x, 22.x, 24.x
Basic usage or getting-started notes:
Just getting started? Check out Deep Agents — a higher-level package built on LangChain for agents that have built-in capabilites for common usage patterns s...
Getting started: Installation, setting up the environment, simple examples
1---2name: agentskillexchange-skills-langchain-mcp-server3description: LangChain MCP Server4---56# LangChain MCP Server78910## Installation1112Use the upstream install or setup path that matches your environment:13- You can use npm, pnpm, or yarn to install LangChain.js14- npm install -S langchain or pnpm install langchain or yarn add langchain1516Requirements and caveats from upstream:17- For an equivalent Python library, check out [LangChain](https://github.com/langchain-ai/langchain).18- Node.js (ESM and CommonJS) - 20.x, 22.x, 24.x1920Basic usage or getting-started notes:21- 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...22- [Getting started](https://docs.langchain.com/oss/javascript/langchain/overview): Installation, setting up the environment, simple examples2324- Source: https://github.com/langchain-ai/langchainjs25- Extracted from upstream docs: https://raw.githubusercontent.com/langchain-ai/langchainjs/HEAD/README.md2627## Source2829- [Agent Skill Exchange](https://agentskillexchange.com/skills/langchain-mcp-server/)3031---32> Source: [agentskillexchange/skills](https://github.com/agentskillexchange/skills) — distributed by [TomeVault](https://tomevault.io).33<!-- tomevault:4.0:skill_md:2026-06-15 -->
Run npx skillmds@latest add tomevault-io/agentskillexchange-skills-langchain-mcp-server in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.
LangChain MCP Server It is listed under AI & ML on SkillMD.
This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.
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tomevault-io (@tomevault-io) published this skill. Their other Agent Skills are listed on their SkillMD profile.
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