MCP SSE Client

A JavaScript client implementation for interacting with the MCP (Model Context Protocol) Server with Server-Sent Events (SSE) support.

Overview

This client provides functionality to:

• Connect to SSE stream for real-time updates
• Execute tools (like adding numbers)
• Fetch resources (like personalized greetings)

The server implementation can be found at mcp-python-sse.

Setup

1. Include the client in your project:

import { addNumbers, getGreeting } from './sse_client.js';

2. The SSE connection will be automatically established when the client is loaded.

Usage

Listening to SSE Events

The client automatically sets up an SSE connection and listens for messages:

// The connection is automatically established
// Messages will be logged to console

Using Tools

Add Numbers

const result = await addNumbers(5, 3);
console.log('Sum:', result); // Will output the sum

Using Resources

Get Greeting

const greeting = await getGreeting('Alice');
console.log('Greeting:', greeting); // Will output a personalized greeting

API Reference

Functions

addNumbers(a: number, b: number)

• Parameters:
  • a: First number
  • b: Second number
• Returns: Promise with the sum result

getGreeting(name: string)

• Parameters:
  • name: Name to include in greeting
• Returns: Promise with the greeting message

Server Configuration

By default, the client connects to http://localhost:8000. The server implementation should be running and accessible at this address.

For server setup and configuration, please refer to the mcp-python-sse repository.