LangGraph
Framework for building stateful, multi-actor applications with LLMs.
Used in agent projects
82
0.6% of 12,697 public repos built with AI coding agents
Rank in agent, mcp and tool libraries
#5 of 9
by use in those projects
Downloads
12.1M
PyPI, last 7 days, langgraph
GitHub stars
43K
last push Oct 10, 2026
How LangGraph is used
LangGraph is a dependency in 82 of the 12,697 public GitHub projects set up for AI coding agents that we scanned (0.6%), #5 of 9 in agent, mcp and tool libraries. The most used alternative there is Model Context Protocol SDK (JavaScript). Projects that use it most often also use LangChain (Python) (87.8%), python-dotenv (72.0%), Pydantic (72.0%).
Often used with LangGraph
| LangChain (Python) | 87.8% of LangGraph projects · 79.1× more than average |
|---|---|
| python-dotenv | 72.0% of LangGraph projects · 11.0× more than average |
| Pydantic | 72.0% of LangGraph projects · 14.1× more than average |
| FastAPI | 58.5% of LangGraph projects · 13.8× more than average |
| Uvicorn | 57.3% of LangGraph projects · 13.4× more than average |
| Pydantic Settings | 43.9% of LangGraph projects · 22.2× more than average |
| Requests | 41.5% of LangGraph projects · 7.8× more than average |
| OpenAI Python Library | 39.0% of LangGraph projects · 20.3× more than average |
By coding agent
| GitHub Copilot | 1.5% of projects set up for it |
|---|---|
| Claude Code | 0.9% of projects set up for it |
| Cursor | 1.2% of projects set up for it |
Share of public repos configured for each agent that list LangGraph as a dependency.
Install
| Package | pip install langgraph |
|---|---|
| Main stacks | Python (78), Next.js (3), .NET (1) |
| Example projects | MDalamin5/End-to-End-Agentic-Ai-Automation-Lab, timowhite88/Farnsworth, towardsai/agentic-ai-engineering-course, hackerlibs/code-hacker, synapticore-io/marimo-flow |
Alternatives to LangGraph
| Tool | Used in agent projects | Downloads / wk | GitHub stars | License |
|---|---|---|---|---|
| Model Context Protocol SDK (JavaScript) npm TypeScript SDK for building MCP servers and clients to extend AI agent capabilities. |
603 (4.7%) | 65.4M | 13.5K | MIT |
| Model Context Protocol SDK (Python) pypi Python SDK for building MCP servers and clients to extend AI agent capabilities. |
484 (3.8%) | 60.6M | 24.5K | MIT |
| FastMCP (Python) pypi Fast, Pythonic framework for building MCP servers and clients for AI tool integration. |
169 (1.3%) | 14.3M | 28K | — |
| LangChain (Python) pypi Framework for composing applications with LLMs through chains and agents. |
141 (1.1%) | 37.3M | 148K | MIT |
| LangChain.js npm Build applications with LLMs using composable abstractions for chains, agents and memory. |
67 (0.5%) | 6.2M | 18.3K | MIT |
| Mastra npm Framework for building AI agents with tools, memory and MCP server support. |
39 (0.3%) | 2M | 28.7K | Apache-2.0 |
| fastMCP (JavaScript) npm TypeScript framework for building Model Context Protocol servers. |
33 (0.3%) | 709K | 3,274 | MIT |
| LangChain (JavaScript) npm TypeScript framework for building applications with LLMs, chains, agents and memory. |
30 (0.2%) | 3.1M | 18.3K | MIT |