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Apache Burr: Open-Source State Machine Framework for Building Reliable AI Agents

Apache Burr provides a state-machine-based architecture for building reliable AI agents, making complex multi-step LLM workflows predictable and testable. It includes built-in tracing, observability, and a local visualization UI, allowing developers to replay and debug agent execution step by step. Model-agnostic and integrable with LangChain, LlamaIndex, and major LLM providers, it also supports state persistence and human-in-the-loop workflows for production use.