This MCP Express adapter provides a middleware solution for creating and managing multiple MCP (Model Context Protocol) servers within a Node.js environment using Express. It supports SSE for real-time communication and plans for WebSocket integration, enabling efficient client-server interactions. The library allows easy setup of different MCP tools, each on separate endpoints, with TypeScript support for type safety. Key features include header-based authorization, multi-client management, and streamlined deployment, making it suitable for developers who need to host lightweight, scalable MCP services for AI agents, data querying, or other real-time applications. It aims to reduce complexity in scaling MCP clients and simplifies updates and maintenance tasks.