Thousands of MCP servers exist. These 15 are the most useful for developers — tested, maintained, and ready to use with Claude Code, Cursor, and other MCP hosts.

Development tools

1. GitHub — Read repos, create issues, manage PRs, search code.

claude mcp add github npx @modelcontextprotocol/server-github

2. Filesystem — Read, write, and search local files.

claude mcp add fs npx @modelcontextprotocol/server-filesystem /path/to/dir

3. Git — Log, diff, blame, branch management.

Databases

4. PostgreSQL — Query your database from AI conversations.

5. SQLite — Local database for development.

6. Redis — Cache operations, key management.

Communication

7. Slack — Send messages, read channels, search history.

8. Email — Send/read via IMAP/SMTP.

Web & search

9. Brave Search — Web search for building AI search.

10. Fetch — Extract content from any URL.

Cloud & infrastructure

11. AWS — Manage AWS resources. See our AWS CLI cheat sheet.

12. Docker — Container management.

13. Kubernetes — Cluster management.

AI & data

14. Ollama — Connect to local models.

15. Vector DB — Query vector databases for RAG.

Installation

# Claude Code
claude mcp add <name> npx <package>

# Cursor: Settings → MCP → Add Server

Build your own: TypeScript tutorial · Python tutorial

Review security before installing: MCP Security Checklist

Related: What is MCP? · MCP Complete Guide · MCP + Claude Code Setup