MC Proto Tool provides a comprehensive implementation of the Minecraft Java Edition network protocol in Rust. It handles key protocol states such as Handshaking, Status, Login, and Play, managing complex packet sequences and transitions. The project structures core protocol definitions, handles serialization/deserialization, and manages asynchronous network I/O using Tokio. It is designed to illustrate how to develop a custom Minecraft server with protocol compliance, supporting features like server status queries, player login, and gameplay data exchange, making it suitable for custom server development, protocol study, and network simulation.