Start your first AI SaaS.
A production-ready Next.js starter. Auth, billing, email, analytics, and AI features, wired together, documented, and covered by 661 tests.
Everything a first product needs
No glue code left for you to write. Each piece ships wired to the others.
Auth, done properly
Email and password with verification, TOTP two-factor, and OAuth providers enabled by one env var.
Billing from Stripe metadata
Checkout, Customer Portal, and a verified webhook. Plans live in Stripe, so pricing changes without a deploy.
Three billing modes
Recurring subscriptions, one-time purchases with an access period, and lifetime deals, plus per-plan limits.
Transactional email
Resend with React Email templates, delivered for auth flows through the Supabase Send Email Hook.
Postgres with RLS
Row level security on every table and an account-scoped data model, ready for teams later.
Working AI features
Vercel AI SDK with OpenAI or Anthropic, token budgets per account, rate limits, and cost telemetry.
Marketing site included
Config-driven landing page, pricing, MDX blog, changelog, waitlist mode, and generated OG images.
Analytics and errors
PostHog on client and server, exception capture, and source maps for readable production traces.
Tested and enforced
661 unit tests, Playwright e2e, GitHub Actions CI, and conventional commits enforced by hooks.
Built for AI-assisted development
The repo carries the context files, prompts, and conventions that make Claude Code and similar tools produce code that fits your codebase instead of fighting it.
- CLAUDE.md project context and a product definition your AI reads first
- 14 feature prompts: organizations, notifications, API keys, webhooks, and more
- A setup wizard that collects keys, creates Stripe products, and validates every integration
What it is not
Accounts are single-user today. The database schema is ready for teams; the UI is yours to build, and a guided prompt for it is included.
It is not a hosted service. You bring your own Supabase, Stripe, Resend, and PostHog accounts; their free tiers are enough to launch.