Graphics APIs, or Graphics Application Programming Interfaces, are sets of tools and protocols that allow software developers to create and manage visual content in applications, especially in video games and simulations. They provide a way for developers to communicate with the computer's hardware, like the graphics card, to render images, animations, and 3D models efficiently. Popular examples of graphics APIs include OpenGL and DirectX. These APIs simplify complex tasks, such as drawing shapes or applying textures, enabling developers to focus on creating engaging experiences without needing to understand the intricate details of the hardware.