GitHub MCP Server + Slack MCP Server

Beginner30 minutes

Use Cases

Common Use Cases

PR review notifications
Deployment alerts
Issue tracking updates
CI/CD status alerts

Before You Begin

Prerequisites

GitHub account with repo access
Slack workspace with bot permissions
Node.js 18+

Walkthrough

Step-by-Step Guide

Install MCP Servers

Install both the GitHub and Slack MCP servers in your agent configuration.

{
  "mcpServers": {
    "github": { "command": "npx", "args": ["-y", "@modelcontextprotocol/server-github"] },
    "slack": { "command": "npx", "args": ["-y", "@modelcontextprotocol/server-slack"] }
  }
}

Configure GitHub Token

Create a GitHub personal access token with repo scope and configure it as an environment variable.

Set Up Slack Bot

Create a Slack app with chat:write and channels:read scopes, install to your workspace, and configure the bot token.

Create Integration Logic

Write the agent logic that watches for GitHub events and posts to Slack.

async function notifyPR(event) {
  const pr = await github.getPullRequest({ owner: event.repo.owner, repo: event.repo.name, pull_number: event.number });
  await slack.sendMessage({
    channel: "#dev",
    text: `New PR: *${pr.title}* by ${pr.user.login}\n${pr.html_url}`
  });
}

Test the Integration

Create a test PR and verify the notification appears in your Slack channel.

Examples

Code Examples

json

MCP Configuration

{
  "mcpServers": {
    "github": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-github"],
      "env": { "GITHUB_TOKEN": "ghp_your_token" }
    },
    "slack": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-slack"],
      "env": { "SLACK_BOT_TOKEN": "xoxb-your-token" }
    }
  }
}

typescript

PR Notification Handler

async function handlePREvent(pr) {
  const emoji = pr.merged ? "✅" : pr.draft ? "📝" : "🔀";
  await slack.sendMessage({
    channel: "#pull-requests",
    text: `${emoji} *${pr.title}*\nBy: ${pr.user.login} | ${pr.additions}+ ${pr.deletions}-\n<${pr.html_url}|View PR>`
  });
}

Help

Troubleshooting

Why aren't notifications showing up?+

Can I filter which PRs trigger notifications?+

How do I handle rate limits?+

Quick Info

DifficultyBeginner

Time Estimate30 minutes

Tools

GitHub MCP ServerSlack MCP Server