This MCP server handles real-time message delivery using Server-Sent Events (SSE). It manages sessions with features like session timeout and graceful shutdown. The server supports custom configuration and extension, allowing for custom SSE message passing, session management, and load balancing. It is designed to prevent memory leaks even with multiple service instances by employing unique identifiers for each client connection. The server also includes mechanisms for automatic session cleanup and health checks via ping, ensuring resource efficiency and reliability. It is suitable for applications requiring persistent, bidirectional communication with clients, such as chat applications, live notifications, or real-time data monitoring systems. Additionally, it supports custom extensions to optimize performance and resource management in complex deployment scenarios.