MarsCode is an innovative AI-powered Cloud Integrated Development Environment tailored to boost developers' productivity. It comes with a built-in AI Assistant capable of offering real-time code suggestions, automating test data generation, and simplifying API testing. With support for over 100 programming languages and mainstream IDEs, MarsCode streamlines the development process by aiding in generating high-quality code efficiently. It creates an online development environment matching real-world scenarios, ensuring a smoother coding experience. Suitable for both novice and experienced developers, MarsCode optimizes the coding workflow and reduces manual effort.