Slack MCP Server Sse

🚀 MCP Server with Slack Integration and SSE Transmission

A Model Context Protocol (MCP) server that integrates with the Slack API and uses the Server-Sent Events (SSE) transmission protocol. This server enables AI assistants to interact with Slack workspaces via a simple HTTP interface.

🚀 Quick Start

This MCP server offers seamless integration with Slack and utilizes the SSE protocol for efficient data transmission. It provides an easy - to - use HTTP interface for AI assistants to communicate with Slack workspaces.

✨ Features

• SSE Transmission: Utilizes Server - Sent Events (SSE) instead of stdio for communication over HTTP/HTTPS.
• Slack API Integration: Grants access to the core functionalities of the Slack API.
• Simple Web Interface: Comes with a basic web interface and a health - check endpoint.
• Docker Support: Fully containerized for easy deployment using Docker.
• TypeScript Implementation: Written in TypeScript for type safety and an enhanced development experience.
• Cross - platform Compatibility: Compatible with any MCP client that supports SSE transmission.

📦 Installation

Prerequisites

• Node.js 18 or higher
• A Slack bot token with appropriate permissions
• Slack team ID
• Docker (optional, for containerized deployment)

Environment Variables

Setup Instructions

Obtain Slack Bot Token and Team ID

1. Create a Slack app:
   • Visit the Slack Applications page.
   • Click “Create New App”.
   • Fill in the app information and submit.
2. Add a bot user to your app:
   • Go to the app's settings page.
   • Navigate to the “Bots” section.
   • Enable the bot user and obtain the token (displayed as BOT_TOKEN).
3. Get the team ID:
   • In Slack, find your workspace URL.
   • The team ID is in the URL in the format TXXXXXX.

Deploy the Server

1. Clone this repository to your local machine.
2. Install the dependencies (e.g., using npm): npm install.
3. Start the server: node index.js.

💻 Usage Examples

Connect to the Server

You can connect to the server using any SSE - supported client. For example, using curl:

curl http://localhost:3000/sse

Basic Usage

const eventSource = new EventSource('http://localhost:3000/sse');

eventSource.onopen = () => {
  console.log('Connected to the SSE server');
};

eventSource.onmessage = (event) => {
  console.log('Received message:', event.data);
  try {
    const data = JSON.parse(event.data);
    console.log('Parsed data:', data);
  } catch (error) {
    console.log('Raw message (non - JSON):', event.data);
  }
};

eventSource.onerror = (error) => {
  console.error('SSE connection error:', error);
  eventSource.close();
};

Supported Operations

• slack SendMessage
• slack GetChannelHistory
• slack GetUserProfile
• slack GetUsers

📄 License

This project is licensed under the MIT license.