Apache Burr: Pure Python State Machine Framework for AI Agents
June 10, 2026
Apache Burr (incubating) is a pure Python library for building stateful AI agents and multi-agent systems using a state machine model with built-in tracking and observability. Core differentiator is explicit state management via composable actions with no hidden abstractions, plus a local tracker for debugging.
HOW THIS AFFECTS YOU
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builderYou can use Burr's ApplicationBuilder API to wire up stateful agent loops with built-in observability without adopting heavier frameworks like LangGraph.