DeepSeek Monitor Windows is a Tauri 2 desktop application for monitoring DeepSeek API usage on Windows. It provides a React/TypeScript frontend with a Rust backend, offering dashboard views for account balance, monthly spending, per-model token usage (V4 Flash and Pro), and a 7-day consumption trend chart. The application stores API keys and usage tokens in a local config file and supports automatic refresh via system tray integration. It is a self-contained monolith that communicates with DeepSeek's official balance endpoint and internal platform usage API through the Rust backend. The frontend manages state via React hooks and uses lucide-react for icons. The architecture is clean with clear separation between IPC commands (in lib.rs) and UI components (in main.tsx). No data science or research components are present.