Plinth — AI-SaaS Starter Kit for Next.js 15
Live preview: https://plinth-demo-sph.netlify.app — click around the real site before you buy.You have an AI product idea — a writer, a chatbot, a niche GPT tool — and you can build the AI part. What kills your momentum is the plumbing: auth, a database, Stripe billing, usage limits, emails, a dashboard, a landing page. The worst of it is metered/credit billing for AI (charge per generation or per token), which almost nobody wants to build from scratch. Plinth is that base, finished.Most AI-SaaS starters make you sign up for three SaaS products (database, auth, LLM) before you can see a single screen. Plinth boots green with no environment variables at all. Clone it, run it, and watch a streaming AI chat decrement a real credit ledger and hit a "limit reached" upgrade flow — *before* you touch an API key. Add your keys when you're ready to ship.Stack: Next.js 15 (App Router), with a credit-based billing ledger, working auth, and a streaming AI chat. Deploys anywhere Next runs — Vercel one-click (point DATABASE_URL at a Turso/libSQL instance for serverless), or npm run build && npm run start on Railway, Render, Fly, or a VPS. The kit saves you the undifferentiated weeks of setup so you can spend your time on the actual product.About the author — I build and ship iOS apps and production web apps for clients; this template comes straight out of that work. Want it customized, or need a site built from scratch? Email tabishhassan01998@gmail.com. Free updates forever — and if you hit a bug, I answer within 48 hours. More by me: https://sassproducthub.gumroad.com · Apps I've shipped: https://apps.apple.com/us/developer/tabish-hassan/id1885918100
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