The Modern Stack for AI Applications — powered by Better Auth, Autumn Billing, Next.js, and Convex.
Skip months of boilerplate and start building your AI SaaS today.

BANC is a production-ready starter kit that wires together the most forward-looking developer tools:

• 🔐 Better Auth – modern, flexible authentication and authorization
• 💳 Autumn Billing – fast billing + subscriptions with Stripe
• ⚡ Next.js 15 – React 19, Turbopack, edge-ready fullstack framework
• 📡 Convex – real-time database, serverless functions, and backend-as-a-service

With BANC, you get authentication, billing, real-time data, and modern React all pre-configured, so you can focus entirely on your AI features, user experience, and scaling.

Clone the repo:

git clone https://github.com/sholajegede/bancstack.git my-app
cd my-app

Install dependencies:

npm install

Setup environment variables:

npm run env:setup

Start dev servers:

# Backend (Convex)
npm run dev:backend

# Frontend (Next.js)
npm run dev:frontend

Visit http://localhost:3000 and you’re live 🎉

✅ Authentication with Better Auth + Convex integration
✅ Billing with Autumn + Stripe
✅ Convex backend (real-time DB, migrations, serverless functions)
✅ Next.js 15 (React 19, Turbopack, App Router)
✅ Tailwind CSS + ShadCN/UI components pre-configured
✅ ESLint + Prettier + TypeScript out of the box

• Next.js 15 + React 19
• Convex 1.25+
• Better Auth 1.3.27
• Autumn-js 0.1.40 + @useautumn/convex 0.0.12
• TailwindCSS 4 + ShadCN/UI
• Zod, Zustand, Recharts

Every modern SaaS app needs:

• Authentication
• Billing
• Real-time data
• Production-ready frontend

Instead of wiring these from scratch, BANC gives you a batteries-included foundation so you can start shipping your AI application today.

MIT © Shola Jegede