Open ACN is a robust AI platforms and frameworks solution designed for building decentralized multi-agent systems. It offers a suite of consensus protocols tailored for agent cooperation, ensuring reliable decision-making across geodistributed nodes. The framework includes modular communication layers, customizable strategy plug-ins, and a built-in simulation environment for end-to-end testing. Developers can define agent behaviors, deploy across Linux, macOS, Windows, or Docker, and leverage real-time logging and monitoring tools. By providing extensible APIs and seamless integration with existing machine learning models, Open ACN simplifies complex orchestration tasks, fostering interoperable, resilient autonomous networks suitable for applications in robotics, supply chain automation, decentralized finance, and IoT.