Open source langgraph projects

Every project in the registry tagged langgraph, ranked by real GitHub adoption.

projects 11 combined stars ★ 216K refresh nightly
01 langchain ★ 149K

The agent engineering platform.

last push17 hours ago languagePython licenseMIT
02 langgraph ★ 44K

Build resilient agents.

last push13 hours ago languagePython licenseMIT
03 Yuxi ★ 7.6K

可私有部署的多租户知识智能体平台:统一 RAG、知识图谱、多智能体、MCP/Skills、沙盒与权限管理。Self-hosted knowledge agent platform for RAG, knowledge graphs and multi-agent workflows.

last push14 hours ago languagePython licenseMIT
04 AiSOC ★ 6.3K

Open-source AI-powered Security Operations Center — alert fusion, purple-team drills, agent-assisted triage, MITRE ATT&CK investigation. MIT-licensed, self-host

last push13 hours ago languagePython licenseMIT
05 TradingAgents-astock ★ 3.9K

A股多Agent投研框架 — 适配A股数据源(龙虎榜/游资/解禁等),7位分析师基于A股规则的辩论决策,基于TradingAgents深度改造,适配大A。A-share multi-agent investment research framework — 7 AI analysts, bull/bear debate

last push3 days ago languagePython licenseApache-2.0
06 mcp-memory-service ★ 2.1K

Open-source persistent memory for AI agent pipelines (LangGraph, CrewAI, AutoGen) and Claude. REST API + knowledge graph + autonomous consolidation.

last push13 hours ago languagePython licenseApache-2.0
07 pandaprobe ★ 793

open source agent engineering platform: traces, evals, and metrics to debug and improve your AI agents. Integrates with LangGraph, CrewAI, Claude Agent SDK, and

last push41 hours ago languagePython licenseApache-2.0
08 scrapecraft ★ 724

🤖 AI-powered web scraping editor with visual workflow builder. Build, test & deploy web scrapers using natural language. Powered by ScrapeGraphAI & LangGraph.

last push10 months ago languagePython licenseMIT
09 gpt-home ★ 652

ChatGPT at home! A better alternative to commercial smart home assistants, built on the Raspberry Pi using LiteLLM and LangGraph.

last push2 months ago languagePython licenseGPL-3.0
10 Adrian ★ 589

Open-source runtime AI agent security tool - monitors and controls AI agents, catching malicious tool use, prompt injection, and policy drift in real time, befo

last push12 days ago languagePython licenseApache-2.0
11 Browser Operator ★ 516

Open-source AI browser for intelligent web automation

last push8 months ago languageTypeScript licenseBSD-3-Clause

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Frequently asked questions

How many open source langgraph projects are there?

This registry tracks 11 projects tagged langgraph, with 216,277 GitHub stars between them. The most-adopted is langchain at 148,851 stars.

Are these langgraph projects free to use?

Yes — 11 of the 11 carry an explicit open-source licence across 4 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.

Which langgraph project should I choose?

The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.

Are these langgraph projects still maintained?

9 of the 11 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.