How to Use Cursor for Developers

Cursor is an AI‑powered coding assistant that helps developers write, refactor, and debug code faster. This guide shows you how to install Cursor, connect it to your editor, and use its key features. Follow each step and you’ll see concrete results in minutes.

Table of Contents

• 1. Install Cursor
• 2. Initial Setup and Configuration
• 3. Core Features Overview
• 4. Real‑World Workflows
• 5. Cursor vs. Competing Tools
• 6. Frequently Asked Questions
• 7. Conclusion

1. Install Cursor

macOS

Download the .dmg from cursor.com. Open the file and drag the app to /Applications. Verify the signature with:

codesign -dv --verbose=4 /Applications/Cursor.app

Windows

Run the .exe installer. Choose “Add to PATH” during setup. After installation, open PowerShell and type:

cursor --version

You should see something like Cursor 2.3.1.

Linux

Use the official tarball:

wget https://cursor.com/releases/cursor-linux-x86_64.tar.gz
tar -xzf cursor-linux-x86_64.tar.gz
sudo mv cursor /usr/local/bin/

Run cursor --help to confirm.

2. Initial Setup and Configuration

Create an Account

Open Cursor and click “Sign Up”. Use your GitHub or Google account. After verification, you receive an API key in the Dashboard.

Configure the API Key

In your terminal:

cursor config set api_key YOUR_API_KEY_HERE

Replace YOUR_API_KEY_HERE with the key from the web dashboard.

Editor Integration

Cursor works with VS Code, Neovim, and JetBrains IDEs.

• VS Code: Install “Cursor AI” from the Marketplace and enable "cursor.enable": true in settings.
• Neovim: Add Plug 'cursor-dev/cursor.nvim' to init.vim and run :PlugInstall.
• JetBrains: Download the plugin zip, go to Settings → Plugins → Install Plugin from Disk.

3. Core Features Overview

Code Completion

Trigger with Ctrl+Space. Cursor offers up to 10 suggestions per line. Example in JavaScript:

const fetchData = async (url) => {
  // Cursor suggests the fetch boilerplate here
}

Refactoring

Select a function and press Ctrl+R. Cursor can extract to a new file, rename variables, or convert callbacks to async/await.

Documentation Generation

Highlight a function and press Ctrl+D. Cursor writes JSDoc or Python docstrings automatically.

Debugging Assistant

When an error appears, place the cursor on the error line and hit Ctrl+E. Cursor suggests possible fixes and links to relevant Stack Overflow posts.

4. Real‑World Workflows

Setting Up a New Node.js Project

1. Run mkdir my-app && cd my-app && npm init -y.
2. Open the folder in VS Code.
3. Create index.js and type express. Cursor completes the import and setup.

import express from 'express';
const app = express();
app.get('/', (req, res) => res.send('Hello World'));
app.listen(3000, () => console.log('Server running'));

Refactoring a Legacy Python Script

Original code:

def calc(a,b):
    return a+b

print(calc(5,7))

Select calc, press Ctrl+R, choose “Extract to module”. Cursor creates utils.py and updates the import.

Generating API Docs for a Go Service

Place the cursor on a public function and hit Ctrl+D. Cursor inserts GoDoc comments with parameter descriptions.

5. Cursor vs. Competing Tools

Feature	Cursor	GitHub Copilot	Tabnine
Free tier completions	50/day	Unlimited (with GitHub account)	30/day
Refactor button	Yes	No	No
Docs generation	Yes	Limited	No
Local‑only mode	Yes	No	Yes (enterprise)
Supported languages	30+	12	20
Price (Pro)	$15/mo	$10/mo	$12/mo

6. Frequently Asked Questions

What operating systems does Cursor support?

Cursor runs on macOS 12+, Windows 10+, and most Linux distributions with a recent glibc.

Is Cursor free or paid?

Cursor offers a free tier with 50 code completions per day and a Pro plan at $15/month for unlimited usage.

Can Cursor integrate with VS Code?

Yes. Install the official Cursor VS Code extension from the marketplace and enable it in Settings → Extensions.

How does Cursor handle private repositories?

Cursor respects .gitignore and never uploads files marked as private. You can also enable local‑only mode.

What languages does Cursor understand best?

JavaScript, Python, TypeScript, Go, Rust, and Java have the highest accuracy, but it supports over 30 languages.

7. Conclusion

Cursor gives developers a practical AI partner. It installs in minutes, works with popular editors, and provides concrete features like refactoring and doc generation. Try the free tier, and if you need unlimited help, the Pro plan costs $15 per month. With Cursor you can write cleaner code faster.