The web application functioned as the interface through which users could interact with agents and experimental platform. The frontend graphical interface was developed using the Vue.js and Node.js frameworks, creating a user-friendly and interactive environment. For the backend, the Python FastAPI framework was employed to manage the logics of multi-agent system and experimental platform, including interfacing with the LLM-based agents through the GPT-4 APIs hosted on Microsoft Azure and handling the operations of the experimental platforms. In addition, the web application was segmented into individual modules corresponding to each task of the chemical synthesis reaction development workflow.