How to Add a Sign Up Button
to a Claude Code Website

Building the site is the easy part - letting real people create an account is where most beginners get stuck. This guide walks you through adding signup, login and "Sign in with Google" to your site, using a database that's free up to 50k users.

• ✓ The two free accounts you need before you start
• ✓ Connecting a free Supabase database to your site, step by step
• ✓ Turning on "Sign in with Google" without touching code