LangGraph
A low-level Python orchestration library for long-running, stateful agents with durable execution, memory and human-in-the-loop checkpoints.

Overview
A low-level Python orchestration library for long-running, stateful agents with durable execution, memory and human-in-the-loop checkpoints.
Durable execution and resumable state · Human-in-the-loop interrupts and state inspection · Short- and long-term agent memory
Developer agent frameworks · MIT library
Original source & installation instructions
A developer framework, not a ready-made app; its MIT licence does not include separate LangSmith hosting/observability, model access or infrastructure.