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Example MCP SSE Server: Real-Time, Ultra-Low-Latency Streaming - MCP Implementation

Example MCP SSE Server: Real-Time, Ultra-Low-Latency Streaming

Example MCP SSE Server delivers real-time, ultra-low-latency data streaming with seamless scalability—perfect for apps needing instant updates, from live dashboards to critical alerts.

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About Example MCP SSE Server

What is Example MCP SSE Server: Real-Time, Ultra-Low-Latency Streaming?

Example MCP SSE Server is an open-source implementation of the Model Context Protocol (MCP) designed to enable real-time, ultra-low-latency data streaming via Server-Sent Events (SSE). This server provides a standardized way to manage model resources and establish persistent bidirectional communication channels, ideal for applications requiring instantaneous updates without the overhead of WebSocket protocols. It combines the efficiency of SSE with MCP's resource management capabilities to deliver seamless integration between backend models and client applications.

How to use Example MCP SSE Server: Real-Time, Ultra-Low-Latency Streaming?

To get started, first ensure you have Node.js (v14+) and Yarn installed. Clone the repository and install dependencies using the provided commands. For local development, run `yarn dev` to start the server with MCP inspector tools. In production, use `yarn start` and optionally set the PORT environment variable. Clients connect to the `/sse` endpoint for real-time streams, while the `/messages` endpoint handles command delivery. Transition between environments is straightforward thanks to the modular architecture.

Example MCP SSE Server Features

Key Features of Example MCP SSE Server: Real-Time, Ultra-Low-Latency Streaming?

  • Native MCP Compliance: Fully implements the Model Context Protocol standards for resource discovery and lifecycle management
  • Optimized SSE Streaming: Leverages browser-native SSE for sub-second latency without requiring additional client libraries
  • Dynamic Resource Templating: Pre-configured resource definitions with customizable parameters for model deployments
  • Express.js Integration: Built on Express for rapid development and easy middleware extension
  • Development Tools: Built-in MCP inspector for debugging and real-time diagnostics

Use cases of Example MCP SSE Server: Real-Time, Ultra-Low-Latency Streaming?

This server excels in scenarios demanding instant data synchronization and efficient resource management, such as:

  • Real-time model inference pipelines with incremental output streaming
  • Collaborative applications needing synchronized state updates
  • IoT dashboards requiring continuous sensor data feeds
  • Live analytics platforms with low-latency processing requirements
  • API gateways managing multiple model endpoints

Example MCP SSE Server FAQ

FAQ from Example MCP SSE Server: Real-Time, Ultra-Low-Latency Streaming?

  • Q: Does this work with older Node.js versions?
    A: While v14+ is recommended for performance, LTS versions down to v12 may work with some limitations.
  • Q: Can I customize SSE headers?
    A: Yes, through the Express middleware chain exposed in src/sse-server.ts
  • Q: How is latency measured?
    A: Typical end-to-end latency under 150ms in controlled environments, heavily dependent on network conditions
  • Q: What authentication options exist?
    A: Built-in support for API keys; OAuth2 and JWT integrations can be added via Express middleware
  • Q: Where should I start contributing?
    A: Check the CONTRIBUTING.md for guidelines, and dive into the src/mcp-server.ts for core logic

Content

Example MCP SSE Server

A Model Context Protocol (MCP) server implementation, enabling server-sent events (SSE) based communication.

Overview

Example MCP SSE Server provides a Model Context Protocol implementation that allows for real-time communication using Server-Sent Events (SSE). It's designed to work with applications and provides a standardized way of managing and communicating with models and resources.

Features

  • Model Context Protocol (MCP) implementation
  • Server-Sent Events (SSE) for real-time communication
  • Resource templating and management

Prerequisites

  • Node.js (v14 or higher recommended)
  • Yarn package manager (can be changed easily)

Installation

Clone the repository and install dependencies:

git clone [[email protected]](/cdn-cgi/l/email-protection):yunusemredilber/express-mcp-sse-server.git
cd express-mcp-sse-server
yarn install

Usage

Starting the Server

To start the server in development mode:

yarn dev

This will run the server with the MCP inspector for debugging.

dev-ss

To start the server in production mode:

yarn start

By default, the server runs on port 3001. You can override this by setting the PORT environment variable:

PORT=5000 yarn start

Endpoints

  • /sse - SSE endpoint for establishing persistent connections
  • /messages - Endpoint for sending messages to the MCP server

Project Structure

  • src/index.ts - Main entry point of the application
  • src/mcp-server.ts - Implementation of the MCP server and resource definitions
  • src/sse-server.ts - SSE server implementation using Express

Dependencies

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