Launch a subscription SaaS without rebuilding auth and billing from scratch.

AI SaaS Starter Kit is a complete Next.js 16 foundation for indie hackers, agencies, and developers building AI-powered (or any) SaaS products. You get marketing pages, authentication, Stripe billing, a production-style dashboard, admin tools, and step-by-step documentation in one download.

What's inside

Marketing

• Landing page with modern dark UI
• Pricing page with FAQ
• Privacy & terms pages
• Edit pricing tiers and FAQ from the admin panel (no redeploy for content)

Authentication

• Email/password registration and login
• Optional Google & GitHub OAuth
• Email verification and password reset flows

Billing

• Stripe Checkout and customer portal
• Webhooks with subscription sync to PostgreSQL
• Plan gating: Free, Pro, and Business

Dashboard

• Overview, settings, and billing
• Analytics with usage events (Pro plan)
• Teams: create organizations, invite members by email, accept invites (Business plan)

Admin

• User management
• CMS for public pricing and FAQ
• Organization overview

API & AI hooks

• Versioned API routes including health check
• Chat/completion endpoint ready for your AI provider
• Credits field and usage event logging for metering

Documentation

• Getting started, environment variables, Stripe, auth, Vercel deployment, Docker, customization, and an E2E checklist

Tech stack

Next.js 16 · React 19 · TypeScript · Tailwind CSS 4 · shadcn/ui · Auth.js v5 · Prisma · PostgreSQL · Stripe · Resend (email) · React Email · Zod · React Hook Form

What you receive

• Full source code (ZIP)
• .env.example and seeded demo accounts
• MIT license — commercial use allowed

Requirements

Node.js 18+, PostgreSQL (local, Neon, or Railway), Stripe account for billing, basic Next.js experience.

Not included: hosted infrastructure, AI API keys, or a finished AI product — you plug in your provider and product logic on top of the included hooks.

Version

v1.0.0