# LangGraph

> Framework for building stateful multi-agent AI systems

LangGraph is a library for building stateful, multi-actor AI applications with LLMs. It extends LangChain with graph-based workflows that support cycles, persistence, and human-in-the-loop patterns. Used to build complex AI agents, chatbots, and orchestration systems.

## Quick facts

- Categories: Automation, Code Assistant, Developer Tools
- Pricing: Free
- Free plan: Yes
- Official site: https://langchain-ai.github.io/langgraph
- Last checked: 2026-10-21

## Key features

- Graph-based agent orchestration
- Stateful multi-actor applications
- Human-in-the-loop support
- Persistence and checkpointing
- Streaming output
- LangChain ecosystem integration

## Use cases

- Building stateful AI agents
- Multi-step reasoning workflows
- Human-supervised AI automation
- Production-grade agent systems

## Links

- Nextool.ai page: https://nextool.ai/tools/langgraph/
- Alternatives: https://nextool.ai/alternatives/langgraph/

Source: Nextool.ai (https://nextool.ai/tools/langgraph/). Pricing and features change; confirm on the provider's site before relying on them.