The Intelligent Internet Agent (II-Agent V1) is a comprehensive open-source intelligent assistant designed to streamline various workflows for developers, researchers, and content creators. With its full-stack development capabilities, II-Agent facilitates the entire software development lifecycle, from initial setup to deployment, through intelligent code generation and optimization. It also offers features for slide creation, transforming brief content into professional presentations with automated formatting and design suggestions. The tool's deep research capabilities, powered by II-Researcher, enable users to conduct thorough investigations and generate detailed reports efficiently. Additionally, II-Agent supports high-fidelity image and video generation, allowing users to visualize ideas and create multimedia content seamlessly. The tool's versatility is enhanced by its support for multiple AI models, universal connectors for popular applications, and custom skills integration, making it suitable for a wide range of users seeking to enhance productivity and creativity in their projects.