There are hundreds of MCP servers available now, but most aren’t worth your time to set up. After testing dozens of them, these are the ten that consistently deliver — whether you’re a developer using Claude Code, or someone who just wants Claude to be genuinely useful day-to-day.
📋 Contents
- What Makes an MCP Actually Worth Installing?
- 1. Filesystem MCP — Essential for Everyone
- 2. GitHub MCP — Indispensable for Developers
- 3. Brave Search MCP — Real-Time Web Access
- 4. Playwright MCP — Browser Automation
- 5. PostgreSQL MCP — Talk to Your Database
- 6. Memory MCP — Persistent Context Across Sessions
- 7. Fetch MCP — Read Any URL
- 8. Slack MCP — Team Communication Integration
- 9. n8n MCP — Connect to 400+ Apps
- 10. Context7 MCP — Up-to-Date Library Documentation
- How to Stack Multiple MCPs
- Key Takeaways
What Makes an MCP Actually Worth Installing?
A good MCP should save you more time than it takes to set up. It should work reliably, not require complex authentication flows, and add capabilities you’d actually use in a normal session. With that filter applied, here are the ten that make the cut.
1. Filesystem MCP — Essential for Everyone
Package: @modelcontextprotocol/server-filesystem
Cost: Free
Best for: Reading and writing local files
This is the one MCP everyone should have. It lets Claude read your notes, project files, config files, and documents — and write or edit them directly. Point it at your Documents or Projects folder and Claude becomes a genuine local assistant rather than a web-only chat.
Real use case: “Summarise all the markdown files in my meeting-notes folder from this week” — Claude reads them all and gives you a coherent digest in seconds.
2. GitHub MCP — Indispensable for Developers
Package: @modelcontextprotocol/server-github
Cost: Free (needs GitHub personal access token)
Best for: Code review, issue management, PR summaries
With the GitHub MCP, Claude can read your repos, summarise open PRs, create issues from a conversation, and check recent commits. Particularly useful for catching up on a project you haven’t touched in a week: “What’s changed in the main branch since Monday?”
3. Brave Search MCP — Real-Time Web Access
Package: @modelcontextprotocol/server-brave-search
Cost: Free tier available (2,000 queries/month free on Brave Search API)
Best for: Current events, research, price checking
Claude’s training has a cutoff. The Brave Search MCP fixes that. Free tier covers casual use; paid plans start at $3/month for heavier research workloads. Far cheaper than paying for a premium AI search tool separately.
4. Playwright MCP — Browser Automation
Package: @executeautomation/playwright-mcp-server
Cost: Free
Best for: Web scraping, form automation, visual site testing
Playwright gives Claude a real browser it can control — click buttons, fill forms, extract tables, take screenshots. Useful for automating repetitive web tasks without writing any code yourself. Just describe what you want done.
5. PostgreSQL MCP — Talk to Your Database
Package: @modelcontextprotocol/server-postgres
Cost: Free
Best for: Business analytics, data exploration, report generation
Connect Claude to a Postgres database and ask questions in plain English. “How many new signups did we get last month, broken down by country?” Claude writes and runs the SQL, returns the answer. No SQL knowledge required.
6. Memory MCP — Persistent Context Across Sessions
Package: @modelcontextprotocol/server-memory
Cost: Free
Best for: Personal assistants, ongoing projects, building context over time
By default, Claude forgets everything when you close a conversation. The Memory MCP stores facts in a local knowledge graph that persists across sessions. Tell it once that you prefer British English, that your server IP is X, or that you’re working on project Y — it remembers.
7. Fetch MCP — Read Any URL
Package: mcp-server-fetch
Cost: Free
Best for: Reading documentation, extracting content from pages
Simple but powerful: give Claude any URL and it fetches the content and reads it. Perfect for having Claude read API documentation while you’re building something, or pulling information from pages that aren’t indexed anywhere Claude knows about.
8. Slack MCP — Team Communication Integration
Package: @modelcontextprotocol/server-slack
Cost: Free (needs Slack bot token)
Best for: Summarising threads, drafting messages, catching up on channels
Connect Claude to your Slack workspace and ask it to summarise what happened in #engineering this week, or draft a status update to send to #general. Saves significant time on communication overhead.
9. n8n MCP — Connect to 400+ Apps
Package: n8n community node
Cost: Free if self-hosted (n8n is open source)
Best for: Connecting Claude to services that don’t have native MCPs
n8n is a workflow automation tool with over 400 integrations. Running n8n locally alongside Claude means you can bridge Claude to almost any service — CRMs, email, spreadsheets, payment processors — without waiting for a native MCP to exist.
10. Context7 MCP — Up-to-Date Library Documentation
Package: @upstash/context7-mcp
Cost: Free
Best for: Developers using Claude Code
Claude’s training data has a knowledge cutoff. Context7 solves this for developers by providing real-time documentation for any library or framework. When you’re building with a library Claude might not fully know, Context7 fetches the current docs and injects them into context automatically.
How to Stack Multiple MCPs
All of these can run simultaneously. Your config file simply lists each one:
{
"mcpServers": {
"filesystem": { "command": "npx", "args": ["-y", "@modelcontextprotocol/server-filesystem", "/Users/you/Documents"] },
"github": { "command": "npx", "args": ["-y", "@modelcontextprotocol/server-github"], "env": { "GITHUB_PERSONAL_ACCESS_TOKEN": "your_token" } },
"memory": { "command": "npx", "args": ["-y", "@modelcontextprotocol/server-memory"] },
"fetch": { "command": "npx", "args": ["-y", "mcp-server-fetch"] }
}
}Restart Claude Desktop after editing and all four will be available immediately.
Key Takeaways
- Start with Filesystem + Memory — they improve every single Claude session
- Add GitHub if you’re a developer; Brave Search if you research online; Playwright if you do web automation
- The Postgres MCP is underrated — non-technical users can query databases in plain English
- All ten on this list are free or have generous free tiers; total cost to run all of them: £0
- Stacking MCPs is straightforward — one JSON config, one restart
AI Maestro covers practical AI guides and tool reviews. No sponsorship on this list — just MCPs that genuinely earn their place in a daily workflow.
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