The Claude Guide
028 min read

Getting Started

The goal of this chapter is simple: have Claude Code installed and running on your computer before you turn the page. It should take you less than ten minutes.

Creating an account and picking a plan

Go to claude.ai and sign up. You can use your email or log in with Google. Takes about a minute.

Once you're in, you need a paid plan to use Claude Code. The Pro plan at $20/month is the right starting point. It gives you plenty of usage for learning and day-to-day tasks.

$20 a month. Less than Netflix. Commit to one month, actually use it, and see what happens. If it clicks, keep going. If it doesn't, cancel. The worst outcome is you are $20 down and you know whether this is for you.

Tip

Start with one month, not a year. If you sign up and barely open it, cancel and come back when you have a real task. The people who get value from Claude Code use it on actual work, not just to try it out. One genuine project will tell you more than a week of experimenting.

Installing Claude Code on your computer

Claude Code runs in your terminal. If that sounds unfamiliar, don't worry. A terminal is just a text window where you type instructions directly to your computer instead of clicking around. On a Mac it is called Terminal (you can find it in Applications → Utilities). On Windows it is called PowerShell.

Before you install Claude Code, you need something called Node.js installed on your machine. Think of it as the engine Claude Code runs on.

Step 1: Check if Node.js is already installed

Open your terminal and type exactly this, then press Enter:

Terminal
node --version

If it prints something like v20.11.0, you already have it. Jump straight to Step 3.

Terminal showing node --version output

Step 2: Install Node.js (only if Step 1 didn't print a version)

  1. Open a browser and go to nodejs.org/en/download. The page looks like this:
Node.js download page

You will see a block of terminal commands at the top — ignore that, it is an advanced method. Scroll down slightly and click the green macOS Installer (.pkg) button. The file downloads automatically.

  1. Open the downloaded file. An installer window appears.
Node.js installer intro screen
  1. Click Continue. You will reach a license agreement screen — click Continue again. A popup appears asking you to agree.
Node.js installer license dialog

Click Agree (or the equivalent in your language) to proceed.

  1. You will see the installation type screen. Leave everything as-is and click Install. Your Mac may ask for your password — that is normal, it just needs permission to install software.
Node.js installer type screen
  1. The installation runs for about a minute.
Node.js installer progress
  1. When you see the summary screen saying the installation was successful, click Close.
Node.js installer done screen
  1. Back in your terminal, type node --version again. You should now see a version number.

Step 3: Install Claude Code

Back in your terminal, type this and press Enter:

Terminal
npm install -g @anthropic-ai/claude-code

A bunch of text will scroll past. That is normal. It is downloading and setting things up.

npm install output in terminal

When it finishes, confirm it worked:

Terminal
claude --version

You should see a version number. If you do, you're ready.

Terminal showing claude --version output

Logging in for the first time

Last step. In your terminal, type:

Terminal
claude

Claude Code opens and the first thing it asks is how you want your terminal to look.

Claude Code theme selection screen

Press 2 for Dark mode or 3 for Light mode, then Enter. Either works fine.

Next it asks how you want to log in.

Claude Code login method selection

Press 1 (Claude account with subscription) and Enter. This is the option that uses the Pro plan you just signed up for.

A browser tab opens automatically.

Claude Code browser authorization page

Click Authorize. You will see a confirmation page.

Claude Code browser authorization success

Close that tab and go back to your terminal. It will show your email address and a success message.

Claude Code terminal login success

Press Enter to continue. One more screen appears.

Claude Code workspace trust screen

This is a safety check. Claude is asking whether it is allowed to read and edit files in this folder. Press 1 to confirm, then Enter.

You are in. Claude Code is ready.

Claude Code welcome screen
Tip

You only need to log in once. After that, claude in any folder just works.

That's it. You're set up.

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