What the third-party services in your stack will bill you each month. ai-project-bootstrap itself is free and MIT-licensed — this estimates Supabase, Sentry, Stripe and the rest, not the tool.
The generator is free, open source and takes no cut. It reads the pricing each vendor publishes so you can see roughly what your chosen stack costs before you commit to it — the bills come from those vendors directly, to you.
Every generation prints a one-line estimate and writes the full breakdown to docs/costs.md. It is a starting point, never a guaranteed figure.
Est. cost $134/mo (Supabase, OneSignal, ...) — 3 usage-based services not counted
Nine modules carry a summable estimate: Supabase, Clerk, Auth0, Sentry, Better Stack, Resend, SendGrid, OneSignal and EAS Submit. Seven are usage-based: Stripe, RevenueCat, PostHog, Firebase, Cloudflare R2, GitHub Actions and GitLab CI. The rest have no vendor to price — a testing library or a UI feature costs nothing to add.
Every figure was checked by hand against that vendor's own pricing page on a date recorded in the module's notes. There is no live pricing API and no network call at generation time. A flat or freemium module missing a number is treated as 'no cost data available', never as $0.
A price goes stale the moment a vendor changes plans. The note and the link stay useful regardless — docs/costs.md carries both for every service.
## Estimated monthly total: $134/mo - **Supabase** — $25/mo (paid tier) — [pricing](https://supabase.com/pricing) Free tier: 50,000 MAU, 500MB database, 5GB egress, projects pause after a week idle. Pro removes pausing and adds daily backups. ## Usage-based (not included in the total above) - **Stripe** — [pricing](https://stripe.com/pricing) No monthly fee. Standard US card processing is 2.9% + 30¢.