10 Essential MCP Servers Every Claude Code User Should Install

Mar 24, 2026

Cowrie

Dev @ Bswen

Purpose

Claude Code is powerful, but by default it can only generate code. It cannot:

Read or write files
Query databases
Call APIs
Control a browser

MCP servers fix this by adding tools that Claude can use directly.

The 10 Essential Servers

Here are the MCP servers I find most useful:

1. Filesystem (★★★★★ Essential)

Read and write files directly:

claude mcp add filesystem -s user -- npx -y @modelcontextprotocol/server-filesystem ~/Documents ~/Projects ~/Desktop

Use for: Direct file operations, code modifications

2. GitHub (★★★★☆ Very Useful)

Manage issues, PRs, and repositories:

claude mcp add github -s user -e GITHUB_TOKEN=your_token -- npx -y @modelcontextprotocol/server-github

Use for: Create issues, review PRs, manage repositories

3. Puppeteer (★★★★☆ Very Useful)

Control a browser for testing and automation:

claude mcp add puppeteer -s user -- npx -y @modelcontextprotocol/server-puppeteer

Use for: Web testing, scraping, screenshots

4. PostgreSQL (★★★☆☆ Useful)

Query and modify PostgreSQL databases:

claude mcp add postgres -s user -e DATABASE_URL=postgresql://user:pass@localhost/db -- npx -y @modelcontextprotocol/server-postgres

Use for: Database queries, schema modifications

5. Fetch (★★★★☆ Very Useful)

Make HTTP requests to any API:

claude mcp add fetch -s user -- npx -y @kazuph/mcp-fetch

Use for: REST API calls, webhooks

6. Brave Search (★★★☆☆ Useful)

Search the web for current information:

claude mcp add search -s user -e BRAVE_API_KEY=your_key -- npx -y @modelcontextprotocol/server-brave-search

Use for: Finding documentation, researching solutions

7. Slack (★★☆☆☆ Nice to Have)

Send messages and manage channels:

claude mcp add slack -s user -e SLACK_TOKEN=your_token -- npx -y @modelcontextprotocol/server-slack

Use for: Team notifications, automated messages

8. Time (★★☆☆☆ Nice to Have)

Timezone conversion and date calculations:

claude mcp add time -s user -- npx -y @modelcontextprotocol/server-time

Use for: Scheduling, timezone handling

9. Memory (★★★☆☆ Useful)

Persist information across conversations:

claude mcp add memory -s user -- npx -y @modelcontextprotocol/server-memory

Use for: Remembering context, user preferences

10. Sequential Thinking (★★★☆☆ Useful)

Break down complex problems step-by-step:

claude mcp add thinking -s user -- npx -y @modelcontextprotocol/server-sequential-thinking

Use for: Complex analysis, multi-step reasoning

Quick Reference Table

┌────────────────┬──────────────────────┬────────────────┬──────────┐
│ Server         │ Purpose              │ Requires Token │ Priority │
├────────────────┼──────────────────────┼────────────────┼──────────┤
│ filesystem     │ File read/write      │ No             │ ★★★★★   │
│ github         │ Repo management      │ GITHUB_TOKEN   │ ★★★★☆   │
│ puppeteer      │ Browser control      │ No             │ ★★★★☆   │
│ postgres       │ Database queries     │ DATABASE_URL   │ ★★★☆☆   │
│ fetch          │ HTTP requests        │ No             │ ★★★★☆   │
│ brave-search   │ Web search           │ BRAVE_API_KEY  │ ★★★☆☆   │
│ slack          │ Messaging            │ SLACK_TOKEN    │ ★★☆☆☆   │
│ time           │ Date/timezone        │ No             │ ★★☆☆☆   │
│ memory         │ Persistent storage   │ No             │ ★★★☆☆   │
│ sequential     │ Problem solving      │ No             │ ★★★☆☆   │
└────────────────┴──────────────────────┴────────────────┴──────────┘

Management Commands

# View installed servers
claude mcp list

# Test server connection
claude mcp test filesystem

# Remove a server
claude mcp remove filesystem

# View server logs
claude mcp logs filesystem

# Enable debug mode
claude --mcp-debug

# Check MCP status in session
/mcp

My Recommendation

Start with these three:

filesystem - Most essential, enables file operations
fetch - Enables API calls
github - If you work with GitHub

Then add database and other servers based on your specific workflow.

Summary

In this post, I showed the 10 essential MCP servers for Claude Code. The key points are:

Start with filesystem server - it’s the most useful
Add GitHub and database servers based on your workflow
Use -s user for personal tools, -s project for team-shared
Test servers with claude mcp test <name>

MCP servers transform Claude Code from a coding assistant into a complete automation platform.

Final Words + More Resources

My intention with this article was to help others share my knowledge and experience. If you want to contact me, you can contact by email: Email me

Here are also the most important links from this article along with some further resources that will help you in this scope:

👨‍💻 MCP Official Servers
👨‍💻 Claude Code MCP Guide

Oh, and if you found these resources useful, don’t forget to support me by starring the repo on GitHub!