LangChain MCP

What it does

LangChain MCP gives your AI assistant complete knowledge of LangChain, LangGraph, LangSmith and DeepAgents. Build AI applications faster with semantic search across documentation and source code.

MCP server for LangChain, LangGraph & DeepAgents knowledge + debug your LangGraph agents locally with Polly-like trace analysis. Search docs and code, inspect traces, get AI-powered debugging.

$ npm i -g langchain-mcp $ langchain-mcp login Step 2: Configure Client Claude Code Claude Desktop Cursor $ claude mcp add langchain-mcp -- npx langchain-mcp { "mcpServers": { "langchain-mcp": { "command": "npx", "args": ["langchain-mcp"] } } } Config: ~/Library/Application Support/Claude/claude_desktop_config.json { "mcpServers": { "langchain-mcp": { "command": "npx", "args": ["langchain-mcp"] } } } Config:from langchain-mcp.xyz

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  n8n LangChain integration2023 · n8n.io · ▲202

  Build LLM apps and plug AI into your team's operations

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  LangChain Templates2023 · github.com · ▲164

  A collection of production-ready reference architectures

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  Langchain2023 · thesamur.ai · ▲75

  Introduction to Langchain 101 course

• 
  MCP Bridge by AppfactorMay 2026 · mcp-bridge.ai · ▲211

  Connect any API to any AI agent

• 
  Apideck MCP ServerMay 2026 · apideck.com · ▲178

  Give AI agents access to real-time data across 200+ apps

• 
  AI Designer MCPApr 2026 · aidesigner.ai · ▲89

  Give your agent tools to create beautiful, codebase-aware UI

• 
  Spira Maxima▲578

  Video model that turns script into viral social media videos

  AI · 17d ago · spira.ai

• 
  Rill Browser▲540

  The browser where Claude Code and Codex work beside you

  AI · 17d ago · rill.love

• 
  Germany's new sovereign AI model Kolibri▲424

  Kolibri is Aleph Alpha

  AI · 19d ago · tej.as

• 
  Giving Opus 5.5 a simulated paint canvas▲392

  Paintings by AI models: programs run through a simulation of oil paint.

  AI · 20d ago · stillwet.art

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  PixVerse R2▲381

  A real-time world model you can explore and change

  AI · 29d ago · world.pixverse.video

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  Hemory▲381

  Keep listening. Searchable memory for your AI agents.

  AI · 30d ago · hemory.com

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  isometric.nyc – giant isometric pixel art map of NYC▲1,325

  Hey HN! I wanted to share something I built over the last few weeks: isometric.nyc is a massive isometric pixel art map of NYC, built with nano banana and coding agents. I didn't write a single line of code. Of course no-code doesn't mean no-engineering. This project took a lot more manual labor than I'd hoped! I wrote a deep dive on the workflow and some thoughts about the future of AI coding and creativity: http://cannoneyed.com/projects/isometric-nyc

  AI · Jan 2026 · cannoneyed.com

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  Cowork▲1,088

  Turn Claude into your digital coworker

  AI · Jan 2026 · claude.com

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  DataFast▲867

  Revenue-first analytics

  Growth · Jan 2026 · datafa.st

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  OpenClaw▲836

  The AI that actually does things

  AI · Jan 2026 · openclaw.ai

• 
  Kilo Code Reviewer▲799

  Automatic AI-powered code reviews the moment you open a PR

  Dev tools · Jan 2026 · kilo.ai

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  PostSyncer▲793

  AI Content Maker, for Social Media Publishing

  AI · Jan 2026 · postsyncer.com