LangGraph

Framework for building stateful, multi-agent LLM applications

Code & DevelopmentFree

LangGraph is an open-source framework by LangChain for building stateful, multi-agent workflows with LLMs. Unlike simple chain-based pipelines, LangGraph uses a graph structure to model complex agent behaviors with cycles, conditional branching, and persistent state. It powers production agents at companies requiring complex decision trees and human-in-the-loop workflows.

Key Features

• ✓Graph-based agent workflow modeling
• ✓Persistent state across agent steps
• ✓Human-in-the-loop checkpoints
• ✓Parallel node execution
• ✓First-class streaming support
• ✓LangSmith tracing integration