LangGraph

LangGraph is LangChain's orchestration framework for building stateful AI agents. It organizes actions as nodes in a directed graph, enabling conditional branching, parallel execution, cycles, and persistent state. Agents can run for extended periods with durable execution that persists through failures. Features include human-in-the-loop inspection, short and long-term memory, and multi-agent coordination. Available in Python and TypeScript. The hosted LangGraph Platform offers managed deployments with a free developer tier.