What problem does it solve?
LangGraph is a production-grade framework for building stateful, multi-actor AI applications using graph-based workflows. It enables explicit graph-driven orchestration, robust state management, and scalable coordination across agents, tools, and human-in-the-loop patterns.
Core Features & Use Cases
- Graph construction (StateGraph) for visible, debuggable workflows across agents
- State management and reducers to coordinate data and results
- Persistence with checkpointers for long-running, fault-tolerant executions
- Human-in-the-loop patterns for sensitive decisions and approvals
- ReAct-style agent patterns for tool orchestration and interaction
- Tool integration, streaming, and async execution for production systems
- Production-grade patterns used in real-world multi-agent applications
Quick Start
Build a tiny LangGraph graph with a single agent node and run the compiled app.