The 5 MCPs That Turn Claude Code Into a Superpower

What's In This Guide

The single install prompt for all 5 MCPs at once
Plain-English explanation of what each one actually does
Which two require a free API key and where to get them
Copy-paste commands to verify everything is working
Fixes for the three most common setup problems

One Prompt, All 5 Installed

Paste this into Claude Code and let it run:

Install these 5 MCP servers into my Claude Code at user (global) scope so they work in every project. Run the commands for me one at a time.

Two of them need a free API key. Before you run those two, STOP and ask me to paste the key (or tell you to skip it for now).

Claude will run each command for you. If you prefer to do it manually, here are the five commands:

# 1. Playwright — browser automation
claude mcp add -s user playwright -- npx -y @playwright/mcp@latest

# 2. Context7 — live documentation
claude mcp add --transport http -s user context7 https://mcp.context7.com/mcp

# 3. Sequential Thinking — structured reasoning
claude mcp add -s user sequential-thinking -- npx -y @modelcontextprotocol/server-sequential-thinking

# 4. Perplexity — real-time research (needs API key)
claude mcp add -s user perplexity --env PERPLEXITY_API_KEY="YOUR_KEY" -- npx -y @perplexity-ai/mcp-server

# 5. Firecrawl — web scraping (needs API key)
claude mcp add -s user firecrawl --env FIRECRAWL_API_KEY="YOUR_KEY" -- npx -y firecrawl-mcp

After all five are installed, restart Claude Code, then run:

claude mcp list

You should see all five listed and connected.

The Stack — What Each One Does

1. Playwright — Browser Control

Playwright gives Claude Code a real browser. It can fill out forms, navigate sites, run tests, and extract data from pages that don't have an API.

Example: "Log into my dashboard and pull the last 30 days of usage data."

No API key needed.

2. Perplexity — Real-Time Research

Claude's training data has a cutoff. Perplexity fixes that. With this MCP, Claude can search the web for current information and return results with sources.

Example: "What are the breaking changes in React 19 and how do they affect my codebase?"

Getting your free API key:

Go to perplexity.ai and sign in
Open Settings → API at perplexity.ai/settings/api
Generate a key and copy it
Note: you may need a small prepaid credit balance to activate

3. Context7 — Live Documentation

Context7 pulls the actual current documentation for any library or framework and feeds it to Claude before it writes code. No more hallucinated APIs or deprecated methods.

Example: "Build me an Expo Router v4 navigation stack" — Claude fetches the real v4 docs first.

No API key needed.

4. Firecrawl — Web Scraping

Firecrawl can scrape, crawl, search, and interact with websites and return structured data. Useful for competitor research, extracting brand assets, or pulling content from any public page.

Example: "Scrape my competitor's pricing page and summarise what they offer."

Getting your free API key:

Sign up at firecrawl.dev
Open your dashboard and go to API Keys
Copy the key — the free tier is enough for most use cases

5. Sequential Thinking — Structured Reasoning

Built by Anthropic. This MCP gives Claude a structured internal reasoning loop — it can plan, check its own work, and backtrack if something is wrong, rather than rushing straight to an answer.

Example: "Design the database schema and API architecture for a multi-tenant SaaS app." — Claude will think through it step by step instead of guessing.

No API key needed.

Troubleshooting

Tools not appearing after install Restart Claude Code fully — not just the window, close and reopen the app.

Authentication error on Perplexity or Firecrawl Re-run the command with your actual API key replacing YOUR_KEY.

MCP only works in one project folder You used -s local instead of -s user. Re-run the command with the -s user flag to install globally.

Why This Matters

Claude Code's limitations are almost never about the model itself. They come from what the model can see. These five MCPs expand what Claude can see and do:

MCP	What it adds
Playwright	Eyes — sees and controls the browser
Perplexity	Current knowledge — searches the live web
Context7	Accurate docs — no more outdated API calls
Firecrawl	Web access — scrapes and extracts structured data
Sequential Thinking	Deliberate reasoning — plans before acting

Install them once, they work in every project.

What's In This Guide

The single install prompt for all 5 MCPs at once
Plain-English explanation of what each one actually does
Which two require a free API key and where to get them
Copy-paste commands to verify everything is working
Fixes for the three most common setup problems

One Prompt, All 5 Installed

Paste this into Claude Code and let it run:

Install these 5 MCP servers into my Claude Code at user (global) scope so they work in every project. Run the commands for me one at a time.

Two of them need a free API key. Before you run those two, STOP and ask me to paste the key (or tell you to skip it for now).

Claude will run each command for you. If you prefer to do it manually, here are the five commands:

# 1. Playwright — browser automation
claude mcp add -s user playwright -- npx -y @playwright/mcp@latest

# 2. Context7 — live documentation
claude mcp add --transport http -s user context7 https://mcp.context7.com/mcp

# 3. Sequential Thinking — structured reasoning
claude mcp add -s user sequential-thinking -- npx -y @modelcontextprotocol/server-sequential-thinking

# 4. Perplexity — real-time research (needs API key)
claude mcp add -s user perplexity --env PERPLEXITY_API_KEY="YOUR_KEY" -- npx -y @perplexity-ai/mcp-server

# 5. Firecrawl — web scraping (needs API key)
claude mcp add -s user firecrawl --env FIRECRAWL_API_KEY="YOUR_KEY" -- npx -y firecrawl-mcp

After all five are installed, restart Claude Code, then run:

claude mcp list

You should see all five listed and connected.

The Stack — What Each One Does

1. Playwright — Browser Control

Playwright gives Claude Code a real browser. It can fill out forms, navigate sites, run tests, and extract data from pages that don't have an API.

Example: "Log into my dashboard and pull the last 30 days of usage data."

No API key needed.

2. Perplexity — Real-Time Research

Claude's training data has a cutoff. Perplexity fixes that. With this MCP, Claude can search the web for current information and return results with sources.

Example: "What are the breaking changes in React 19 and how do they affect my codebase?"

Getting your free API key:

Go to perplexity.ai and sign in
Open Settings → API at perplexity.ai/settings/api
Generate a key and copy it
Note: you may need a small prepaid credit balance to activate

3. Context7 — Live Documentation

Context7 pulls the actual current documentation for any library or framework and feeds it to Claude before it writes code. No more hallucinated APIs or deprecated methods.

Example: "Build me an Expo Router v4 navigation stack" — Claude fetches the real v4 docs first.

No API key needed.

4. Firecrawl — Web Scraping

Firecrawl can scrape, crawl, search, and interact with websites and return structured data. Useful for competitor research, extracting brand assets, or pulling content from any public page.

Example: "Scrape my competitor's pricing page and summarise what they offer."

Getting your free API key:

Sign up at firecrawl.dev
Open your dashboard and go to API Keys
Copy the key — the free tier is enough for most use cases

5. Sequential Thinking — Structured Reasoning

Built by Anthropic. This MCP gives Claude a structured internal reasoning loop — it can plan, check its own work, and backtrack if something is wrong, rather than rushing straight to an answer.

Example: "Design the database schema and API architecture for a multi-tenant SaaS app." — Claude will think through it step by step instead of guessing.

No API key needed.

Troubleshooting

Tools not appearing after install Restart Claude Code fully — not just the window, close and reopen the app.

Authentication error on Perplexity or Firecrawl Re-run the command with your actual API key replacing YOUR_KEY.

MCP only works in one project folder You used -s local instead of -s user. Re-run the command with the -s user flag to install globally.

Why This Matters

Claude Code's limitations are almost never about the model itself. They come from what the model can see. These five MCPs expand what Claude can see and do:

MCP	What it adds
Playwright	Eyes — sees and controls the browser
Perplexity	Current knowledge — searches the live web
Context7	Accurate docs — no more outdated API calls
Firecrawl	Web access — scrapes and extracts structured data
Sequential Thinking	Deliberate reasoning — plans before acting

Install them once, they work in every project.

What's In This Guide

The single install prompt for all 5 MCPs at once
Plain-English explanation of what each one actually does
Which two require a free API key and where to get them
Copy-paste commands to verify everything is working
Fixes for the three most common setup problems

One Prompt, All 5 Installed

Paste this into Claude Code and let it run:

Install these 5 MCP servers into my Claude Code at user (global) scope so they work in every project. Run the commands for me one at a time.

Two of them need a free API key. Before you run those two, STOP and ask me to paste the key (or tell you to skip it for now).

Claude will run each command for you. If you prefer to do it manually, here are the five commands:

# 1. Playwright — browser automation
claude mcp add -s user playwright -- npx -y @playwright/mcp@latest

# 2. Context7 — live documentation
claude mcp add --transport http -s user context7 https://mcp.context7.com/mcp

# 3. Sequential Thinking — structured reasoning
claude mcp add -s user sequential-thinking -- npx -y @modelcontextprotocol/server-sequential-thinking

# 4. Perplexity — real-time research (needs API key)
claude mcp add -s user perplexity --env PERPLEXITY_API_KEY="YOUR_KEY" -- npx -y @perplexity-ai/mcp-server

# 5. Firecrawl — web scraping (needs API key)
claude mcp add -s user firecrawl --env FIRECRAWL_API_KEY="YOUR_KEY" -- npx -y firecrawl-mcp

After all five are installed, restart Claude Code, then run:

claude mcp list

You should see all five listed and connected.

The Stack — What Each One Does

1. Playwright — Browser Control

Playwright gives Claude Code a real browser. It can fill out forms, navigate sites, run tests, and extract data from pages that don't have an API.

Example: "Log into my dashboard and pull the last 30 days of usage data."

No API key needed.

2. Perplexity — Real-Time Research

Claude's training data has a cutoff. Perplexity fixes that. With this MCP, Claude can search the web for current information and return results with sources.

Example: "What are the breaking changes in React 19 and how do they affect my codebase?"

Getting your free API key:

Go to perplexity.ai and sign in
Open Settings → API at perplexity.ai/settings/api
Generate a key and copy it
Note: you may need a small prepaid credit balance to activate

3. Context7 — Live Documentation

Context7 pulls the actual current documentation for any library or framework and feeds it to Claude before it writes code. No more hallucinated APIs or deprecated methods.

Example: "Build me an Expo Router v4 navigation stack" — Claude fetches the real v4 docs first.

No API key needed.

4. Firecrawl — Web Scraping

Firecrawl can scrape, crawl, search, and interact with websites and return structured data. Useful for competitor research, extracting brand assets, or pulling content from any public page.

Example: "Scrape my competitor's pricing page and summarise what they offer."

Getting your free API key:

Sign up at firecrawl.dev
Open your dashboard and go to API Keys
Copy the key — the free tier is enough for most use cases

5. Sequential Thinking — Structured Reasoning

Built by Anthropic. This MCP gives Claude a structured internal reasoning loop — it can plan, check its own work, and backtrack if something is wrong, rather than rushing straight to an answer.

Example: "Design the database schema and API architecture for a multi-tenant SaaS app." — Claude will think through it step by step instead of guessing.

No API key needed.

Troubleshooting

Tools not appearing after install Restart Claude Code fully — not just the window, close and reopen the app.

Authentication error on Perplexity or Firecrawl Re-run the command with your actual API key replacing YOUR_KEY.

MCP only works in one project folder You used -s local instead of -s user. Re-run the command with the -s user flag to install globally.

Why This Matters

Claude Code's limitations are almost never about the model itself. They come from what the model can see. These five MCPs expand what Claude can see and do:

MCP	What it adds
Playwright	Eyes — sees and controls the browser
Perplexity	Current knowledge — searches the live web
Context7	Accurate docs — no more outdated API calls
Firecrawl	Web access — scrapes and extracts structured data
Sequential Thinking	Deliberate reasoning — plans before acting

Install them once, they work in every project.