This project offers an example implementation of an MCP server using Rust and Server-Sent Events (SSE). It showcases how to connect an MCP client, register a custom tool (AddTool) for adding two numbers, and integrate with a RIG agent for prompting large language models (LLMs). The included MCP Inspector provides a web interface for interacting with the server and inspecting its state, making it a useful starting point for building more complex MCP-based applications.