← Beacon · open-source AI agent registry

Best Langchain Mcp AI agents

24 actively-maintained langchain mcp agents · ranked by maintenance health · 33,699+ indexed

Looking for the best open-source langchain mcp AI agent? Beacon indexes 33,699+ agents and MCP servers from GitHub and ranks them by real maintenance health — freshness, stars, and activity — so abandoned repos don't top the list. Save time: one search returns ranked, linkable agents in under a second (vs hours on GitHub). Below are 24 langchain mcp agents you can install today — free, no API key.

Search all langchain mcp agents →

Use from your editor: BEACON_REGISTRY_URL=https://registry-ruby.vercel.app npx -y beacon-mcp — ask your AI to find a langchain mcp agent.

For autonomous agents (API)

Free, keyless discovery — paste into your agent workflow:

GET https://registry-ruby.vercel.app/api/v1/search?q=langchain+mcp&limit=10
POST https://registry-ruby.vercel.app/api/v1/discover
  Body: {"query": "langchain mcp", "limit": 10}

llms.txt · Why agents use Beacon

Top 24 langchain mcp agents

Markitdown ★ 165,299

autogenautogen-extensionlangchainmarkdownmicrosoft-office

Langchain ★ 141,666

agentsaiai-agentsanthropicchatgpt

Awesome Mcp Servers ★ 90,684

aimcpcollectionservers

Deer Flow ★ 76,917

agentagenticagentic-frameworkagentic-workflowai

Worldmonitor ★ 61,791

agentaidashboardgeopoliticsmcp

Trendradar ★ 60,446

aibarkdata-analysisdockerhot-news

Context7 ★ 59,027

llmmcpmcp-servervibe-codingcontext7

Headroom ★ 58,875

agentaianthropicclaude-codecompression

Flowise ★ 54,506

agentic-aiagentic-workflowagentsartificial-intelligencechatbot

Chrome Devtools Mcp ★ 46,830

browserchromechrome-devtoolsdebuggingdevtools

Ui Tars Desktop ★ 37,908

agentagent-tarsbrowser-usecomputer-usecowork

Langgraph ★ 37,177

agentsaiai-agentschatgptdeepagents

Agentgpt ★ 36,263

agentagentgptagentsagiai

Playwright Mcp ★ 34,931

mcpplaywrightservermodel-context-protocol

Github Mcp Server ★ 31,346

githubmcpmcp-serverserver

Langfuse ★ 31,040

analyticsautogenevaluationlangchainlarge-language-models

Codebase Memory Mcp ★ 30,896

aiderastclaude-codecode-analysiscode-intelligence

Agents Course ★ 29,945

agentic-aiagentscoursehuggingfacelangchain

Gpt Researcher ★ 28,278

agentaiautomationdeepresearchllms

Agentscope ★ 27,808

agentchatbotlarge-language-modelsllmllm-agent

Mlflow ★ 27,004

agentopsagentsaiai-governanceapache-spark

Serena ★ 26,394

agentaiai-codingclaudeclaude-code

Deepagents ★ 26,177

aideepagentslangchainlanggraphbatteries-included

Mastra ★ 26,126

agentsaichatbotsevalsllm

Frequently asked questions

What is the best open-source langchain mcp agent?

Top-ranked langchain mcp agents on Beacon include Markitdown, Langchain, Awesome Mcp Servers, ranked by maintenance health — recent activity, GitHub stars, and open-issue load — not stars alone.

Are these langchain mcp agents free to use?

Yes. Every langchain mcp agent listed is open-source and free. Beacon is a free directory — no API key or signup to browse or search.

How do I use a langchain mcp agent from my editor or AI assistant?

Run 'npx -y beacon-mcp' to add Beacon as an MCP server in Cursor, Claude Desktop, Cline, or Windsurf, then ask your AI to find a langchain mcp agent.

How does Beacon save time finding a langchain mcp agent?

Instead of searching GitHub and reading dozens of READMEs, call GET https://registry-ruby.vercel.app/api/v1/search?q=langchain+mcp — sub-second results ranked by health, stars, and activity.

Can autonomous AI agents discover langchain mcp tools programmatically?

Yes. Agents read https://registry-ruby.vercel.app/llms.txt and call POST /api/v1/discover with {"query": "langchain mcp"} — no API key required.