4 MCP Servers Every Developer Should Connect First

The Model Context Protocol is what separates "Claude Code the chatbot" from "Claude Code the operating system." These 4 MCP servers are the foundation.

1. GitHub MCP Server

Read issues, create PRs, search code across repos, and manage releases — all from your Claude Code session. No more switching to the browser to check PR comments. Your entire GitHub workflow lives in one place.

2. Playwright Browser Automation

Claude Code can now control a browser. Navigate pages, click buttons, fill forms, take screenshots. Use it for E2E testing, visual verification, or scraping data you need for analysis. It's like Selenium but you describe what you want in English.

3. Database MCP (Postgres/Redis)

Connect your database and Claude Code can query it directly. Debug data issues, generate reports, verify migrations — without leaving your terminal. Just make sure you're connecting to dev, not prod. Obviously.

4. Slack MCP Server

Search messages, read channels, even send updates — all from Claude Code. Perfect for pulling context from team discussions into your coding session. "What did the team decide about the auth flow?" becomes a real query, not a memory test.

Setting Up Your First MCP Server

Add a .mcp.json file to your project root with the server configuration. Claude Code detects it automatically on next session start. No restart, no install, no drama.

Once you have these 4 connected, Claude Code becomes the single interface for your entire development workflow. Read the full MCP deep dive for configuration examples and advanced patterns.