Set up Claude with Antigravity — and take your AI game to the next level.

10-minute setup. 20-minute first project. After that, the same tool builds small tools, real web apps, lead pipelines, inbox triage, or full agent teams. Every click, direct link, and prompt is prepared here.

As of: May 2026 Setup: ~10 min First project: ~20 min Cost: ~$20/month (Claude Pro)
7 steps until you're ready · rose = direct link, amber = click in the app
01Is it worth it?

Honest first: who this is for — and who it's not.

An editor with built-in AI isn't an upgrade for everyone. If you only ask the chat something now and then, the chat works fine. The switch makes sense once you regularly want to build small things yourself.

Yes, if you …
  • regularly copy code, text, or data back and forth between chat and editor
  • want to build small tools or websites of your own that you actually keep
  • want to let the AI work longer without sitting next to the chat
  • have local files (CSVs, notes, configs) you want processed directly
Skip it, if you …
  • only use AI sporadically — three times a month, the chat is enough
  • don't want to let your editor run commands on your machine
  • already use Cursor or Windsurf and it works — no reason to switch
  • only do pure text work — claude.ai in the browser is shorter for that
02What is this

Antigravity + Claude — in 60 seconds.

Both things explained briefly, no tech-speak. If you already know the terms, scroll on.

Antigravity
An editor by Google, built on VS Code — the standard editor most programmers work in. Antigravity has an AI agent built in directly: the AI sees your files, can edit them, can run commands in a terminal. No more copying between chat and editor.
Claude
The AI model from Anthropic — the one behind claude.ai in the browser. In Antigravity you wire Claude in directly, instead of switching between browser tab and editor. The hookup runs through an extension called Claude Code, which you install in Antigravity with one click.
Cost
Antigravity itself is free. Claude on the free tier has 20 requests per day — enough to look around, not to work with. Realistic: Claude Pro for roughly $20/month. If you already have claude.ai Pro, you pay nothing extra.
Honest: Antigravity has been in public preview since November 2025. Occasional crashes, occasional quota hiccups. For serious production code I'd pick Cursor with Claude in the terminal today — but for getting started, Antigravity is the lowest-friction setup I know.
03Setup sequence

Ready in 7 steps — clicks and pastes, prepared for you.

Every step is either a direct-link button or a copy box. You barely type a thing. Realistic time from step 1 to "Claude is answering in the editor": 8 to 12 minutes, depending on how fast your download runs.

1
Subscribe to Claude Pro
The free tier won't make you happy. Pro costs around $20/month and is plenty for solo work. If you already have claude.ai, skip this step.
Create Claude Pro opens claude.ai/upgrade
2
Download Antigravity
About 300 MB. Pick your platform — the buttons go straight to the official download page.
Antigravity download Mac · Windows · Linux — all on antigravity.google
3
Open Antigravity and sign in
On first start, Antigravity asks for a Google account. Personal @gmail.com — Workspace accounts don't work right now. Click through the onboarding, default settings are fine.
Gotcha: If the browser says "successfully authenticated" and Antigravity still hangs on the login page — quit Antigravity fully with ⌘Q, set a different default browser, try again.
4
Install the Claude Code extension
Antigravity ships with Google's Gemini by default. We add Claude via the official extension.
⌘⇧X Extensions search type "Claude Code" Install
Windows/Linux: Ctrl+Shift+X instead of ⌘⇧X.
5
Sign Claude in
After install, a spark icon shows up in the left sidebar. Click it — the first click opens the login.
Spark icon "Sign in with claude.ai" browser confirms
Pick "Subscription", not "API". You're using your Pro account from step 1.
6
Create a workspace folder
One folder per project. Recommendation: create a parent folder on your machine, e.g. ~/AI-Projects/my-first-tool/. Then open that in Antigravity.
File Open Folder pick new folder
7
Create CLAUDE.md — your brain file
What it is: The first file Claude reads in every workspace. Ten lines that say who you are and how you work. Saves a lot of repeat prompting later.

What you do: Create a new file CLAUDE.md in the workspace, paste the block here in, fill in the square brackets.
CLAUDE.md — starter template
# Project: [your project name here]

## What should happen here
[One sentence, e.g.: "A landing page for my consulting with hero, three features, and a contact box."]

## Stack
- HTML with inline CSS, no framework
- Deploy: Netlify Drop (drag-and-drop, no account required)

## How we work here
- Informal, direct, no fluff
- Make code changes directly, don't write big plan texts
- Short answers, I read the diff myself

## What you don't do
- Don't install new dependencies without asking me
- Don't delete files without explicit instruction
- No external API calls without my OK
If you got here, Claude is running in your editor and knows your project. Setup done.
04First project

Build a small website with a chatbot — in about 20 minutes.

We're building a landing page with a hero, a few features, a contact box, and a built-in chatbot widget. Four copy boxes, a few clicks. At the end, it can be online.

1
Send the first prompt
Paste the prompt in the Claude Code panel (spark icon). Fill in your topic in the square brackets first.
First prompt
Build me a simple landing page for [MY TOPIC HERE].

A single HTML file with inline CSS, no framework.
Sections: hero with headline and short subtitle, three features
side by side, contact box with a mailto link.

Modern, clean design, muted colors, readable font.
Save as index.html in the current folder.
2
Iterate until it fits
Look at the result in the browser (double-click index.html) and ask for further changes directly in the chat panel. Claude edits the file live. Examples to try:
Iteration prompts (one after the other)
Make the hero bigger, more breathing room top and bottom.

Different colors — warmer, darker main palette, beige as background.

Add a simple logo placeholder in the top left — just one letter in a circle.

Make the type a bit more generous, line-height a bit more relaxed.
Tip: one ask per prompt. Claude lands cleaner when the task is small.
3
Add the chatbot widget
Tidio has a free tier with drag-and-drop setup. You create an account there, copy your public key, and Claude drops the snippet cleanly into the file.
Create Tidio Free 2 min, no card required
Tidio integration prompt
I just created a Tidio account and got my public key.
Drop this Tidio snippet before the </body> tag in index.html:

<script src="//code.tidio.co/MY-PUBLIC-KEY.js" async></script>

I'll replace MY-PUBLIC-KEY with my real key myself in a moment.
4
Put it live (optional, 2 min)
Netlify Drop takes your folder via drag-and-drop and gives you a public URL. No account required for the first shot.
Open Netlify Drop drop the folder, done
In the chat you'd have had to copy every edit by hand. Here the file is just there — Claude edits it, you watch on the side.
05Outlook

Once the basics are in, this does a lot more.

Quick outlook, no deep-dive tutorial. The first project above is the warm-up — the same Antigravity + Claude carries you a lot further. A few things other people do with it.

Acquisition
Scrape leads from Google Maps or LinkedIn
Drive the browser or pull Apify, ready as a CSV in the editor.
Email
Hook up your full inbox
Gmail or IMAP via MCP. Label, draft, daily briefing.
Data
Process CSV and Excel directly
Local, no upload. Crunch numbers, check, write out a report.
Build
Real web apps and SaaS prototypes
Multi-file projects with frontend, backend, database.
Research
Deep research in the background
Crawl the web, collect sources, structured report.
Scale
Set up agent teams
Several Claudes in parallel: one researches, one writes, one reviews.
What runs better here than in the chat
Multi-file edits in one pass — Claude sees the whole workspace.
Iterate instead of copy — the file stays the single source of truth.
Local data without upload — stays on your machine.
Long tasks in the background — kick them off, come back later.
06Once the basics are in

Four directions you can build out from here.

This is the base — kept small on purpose. If you work in it regularly, after a few days one of these paths is worth taking.

Configuration
Grow CLAUDE.md
Pack more into the brain file: your code style, your tool preferences, conventions. The more concrete, the better. Anthropic recommends < 200 lines.
Guardrails
Sharpen allow- and deny-lists
Allow read-only commands (ls, git status, npm test), hard-block destructive ones (rm -rf, git push -f). Saves permission clicks and protects you.
Real tools
Turn a local script into a web app
Got a Python or Bash script lying around? Wrap a web layer around it (FastAPI, Flask). Multi-file edit, run it locally, see it in the browser — that's the real "aha".
Power
Hook up MCP servers
MCP gives Claude access to external tools (browser, databases, your own APIs). 1-3 servers are enough at first — more than 50 tools slows the response time down.
Punchline

You don't need a 4-hour tutorial.

You need an account, an editor, a folder, and a first prompt.
10-minute setup. 20-minute first project. After that, you have something of your own.

Sources + further reading