Metavision is a sophisticated software toolkit for event-based vision, created by Prophesee, that aims to streamline the assessment, design, and commercialization processes of event-based vision products. This software development kit (SDK) provides an extensive array of tools comprising 64 algorithms, 105 code examples, and 17 tutorials, which empower developers to create and implement event-driven applications effectively. With its open-source framework, the Metavision SDK promotes seamless compatibility between software and hardware components, nurturing a thriving community focused on event-based vision technologies. The toolkit encompasses a diverse array of computer vision disciplines, including machine learning, camera calibration, and high-performance applications. Developers benefit from a wealth of detailed documentation, amounting to over 300 pages of programming guides and reference materials, which lays a strong groundwork for product innovation. Furthermore, the Metavision SDK5 PRO version comes with enhanced features such as high-speed counting and spatter monitoring, among other advanced capabilities, elevating the potential for developers to create cutting-edge solutions. With such comprehensive resources at their disposal, users can confidently explore the possibilities of event-based vision technology.