7-Day SaaS Build Challenge
Build a real SaaS in 7 days
You are going to build a landing page copy grader — an AI tool that grades a founder's headline, subheadline, CTA, and feature bullets with honest scores and specific rewrites. It has auth, billing, history, and shareable links. By Day 7 it earns real money.
What you need before Day 1
Claude Code installed, a free GitHub account, a free Vercel account, and a free Supabase account. No prior SaaS experience needed — every step is written for non-developers.
Day 1 — Design the product and write the grading prompt
45 min
Day 2 — Build the input form and deploy it live
45–60 min
Day 3 — Wire up the Claude API and display graded results
45–60 min
Day 4 — Add Supabase auth and limit free usage to 3 grades
60–90 min
Day 5 — Add Stripe billing and your first paid plan
60–90 min
Day 6 — Build results history and shareable grade links
45–60 min
Day 7 — Write the landing page, go live, and launch
60–90 min
What you will have by Day 7
- A live AI SaaS product at your own domain
- Claude API wired up to grade landing page copy with honest scores
- Supabase user accounts with a 3-grade free tier
- Stripe billing at $15/month with live payments
- Grade history and public shareable result links
- A real marketing landing page and a launch post
- Your first potential paying subscribers