What is docs-langchain?

A remote connection to LangChain's documentation service through MCP. LangChain is a software framework for building applications that use language models.

It is for looking up LangChain documentation while developing or debugging LangChain-based code. The input does not specify which documentation operations are available.

It lets the agent consult current LangChain documentation through a configured service instead of searching manually.

docs-langchain — MCP server for Claude Code and Codex by langchain-ai: A remote connection to LangChain's documentation service through MCP.

About the project

LangChain AWS is a monorepo containing LangChain and LangGraph components for using Amazon Web Services in applications. It provides integrations for language models, vector stores, retrievers, graphs, agents, tools, and checkpoint storage across AWS services.

langchain-ai/langchain-aws · 347 stars · on GitHub

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods

npx agentmods add mcp/langchain-ai/langchain-aws/docs-langchain

Clone the repo

git clone --depth 1 https://github.com/langchain-ai/langchain-aws

Made for: Claude Code, Codex, Cursor, Gemini CLI, OpenCode.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/mcp/langchain-ai/langchain-aws/docs-langchain.svg)](https://agentmods.dev/mcp/langchain-ai/langchain-aws/docs-langchain)

Your own site

<a href="https://agentmods.dev/mcp/langchain-ai/langchain-aws/docs-langchain"><img src="https://agentmods.dev/badge/mcp/langchain-ai/langchain-aws/docs-langchain.svg" alt="Measured on agentmods" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. Scan, not verified.

Origin 100% copy Near-identical to another mod in the catalogue.

Security

Grade A, and why

docs-langchain scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to docs-langchain — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.mcp.json · 6 lines

What it actually says

{
  "docs-langchain": {
    "type": "http",
    "url": "https://docs.langchain.com/mcp"
  }
}

Same file

What else `.mcp.json` configures

This page is one entry in a file that holds 2. Installing the file brings all of them; each is measured and scanned on its own page.

MCP server reference-langchain A not measured

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

6d ago First seen · 6 lines scan A 8f9f7b2072a4

Subscribe to this mod's changes

docs-langchain is an MCP server published in the GitHub repository langchain-ai/langchain-aws (347 stars, last pushed 2d ago), licensed MIT. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. It is 100% identical to docs-langchain, differing in 0 lines, and is treated as a copy.

LangChain aws generative-ai langchain-python

rendercheck

Assertions for AI-generated media. The bugs don't throw; rendercheck makes them throw. Runs locally from the rendercheck Python package. Needs 1 environment variable to run.

rogermsc/rendercheck · not measured

iac

An Infrastructure as Code MCP server that provides CloudFormation template validation, compliance checking, and deployment troubleshooting capabilities. Runs locally from the awslabs.aws-iac-mcp-server Python package.

odere-pro/claude-aws-architect · not measured

mcp-search

MCP server "mcp-search" as configured in thedotmack/claude-mem. Runs const f=require('fs'),p=require('path'),o=require('os'),c=require('child_process');const h=o.homedir();const C=process.env.CLAUDE_CONFIG_DIR||p.join(h,'.claude');const E=process.env.CLAUDE_PLUGIN_ROOT||process.env.PLUGIN_ROOT||'';const…

thedotmack/claude-mem · not measured

claude-flow

Ruflo CLI - Enterprise AI agent orchestration with 60+ specialized agents, swarm coordination, MCP server, self-learning hooks, and vector memory for Claude Code. Runs locally from the @claude-flow/cli npm package. Needs 6 environment variables to run.

ruvnet/RuView · not measured

stagehand

MCP server "stagehand" as configured in browserbase/stagehand. Runs ../core/dist/facade/stdio-server.mjs with node.

browserbase/stagehand · not measured

mcp-toolbox

MCP server "mcp-toolbox" as configured in googleapis/mcp-toolbox. Runs in Docker (us-central1-docker.pkg.dev/database-toolbox/toolbox/toolbox:1.9.0).

googleapis/mcp-toolbox · not measured