AI-First
Starter Kit
Ship your SaaS today with just a few prompts. Complete Next.js 15 boilerplate with production auth, billing, and security. Context engineered to be used by AI agents.
Built with modern, production-proven technologies
The fastest way to build SaaS apps, from prompt to production
“Create for me an entire SaaS Photoshop clone, alongside a modern landing page. The app itself should be locked behind authentication, and the app's Export feature is gated behind a $10/month subscription tier.”
StarterApp is thinking...
Context-engineered for agents: AI can read and reason across complex systems, including auth and billing requirements.
From a single prompt, LLM models can build out entire product workflows and architecture.
Case Study
The EditOnline demo came together in under three hours using a fresh StarterApp project. Feature development, SaaS workflow, and branding all from one command.
We recorded the entire 3 hours from-start-to-finish process so you can see every decision, starting from project initialization to the final product. Zero edits, just the real workflow in action.
Everything you need for production SaaS
Complete monorepo with auth, billing, security, testing, and AI development tools. Launch faster with a foundation built for real SaaS apps.
Authentication
Drop in secure sign-in with BetterAuth, including OAuth providers, session lifecycle, and typed helpers.
Billing & Subscriptions
Stripe subscriptions, trials, usage billing, and invoicing come prewired with sensible defaults.
Customer Portal
Customers manage cards, invoices, upgrades, and downgrades through a built-in portal.
Feature Gating
Align pricing with product using one helper to gate pages, APIs, and components by plan.
Database
Convex supplies realtime data, serverless functions, and access rules without ORM maintenance.
Security
CSP, CSRF, rate limits, and typed error handling ship preconfigured for production checks.
Analytics & Monitoring
PostHog integration captures product usage, funnels, and performance metrics with dashboards ready to read.
Marketing Pages
Hero, pricing, legal, and landing sections ship ready to edit so marketing keeps pace with product.
Dashboard
The admin dashboard ships with structured navigation, account settings, billing controls, and extensible layouts.
shadcn/ui
A curated shadcn/ui kit pairs Tailwind + Radix components with sensible defaults.
Dark Theme
System-aware theming keeps palettes aligned across light and dark, remembering each user’s choice.
Mobile Friendly
Responsive layouts stay touch-friendly and fast on every screen size.
SEO Ready
Metadata, OpenGraph, structured data, sitemaps, and robots.txt are preconfigured for search visibility.
Complete Test Suite
Vitest unit suites, Playwright end-to-end flows, and Testing Library coverage keep regressions in check.
Code Quality
Strict TypeScript, Ultracite linting, and automated formatting keep the codebase predictable.
Documentation
Documentation packages examples, API references, and workflow guides so teams can extend confidently.
AI-Powered Features
Ship faster with context-aware agents woven into your workflow. Let AI build features end-to-end and deliver reviews tuned to your codebase.
Agent-Ready by Design
Agent-ready structure ensures automated changes land exactly where they should.
Automatic Context Engineering
AI sessions start with shared context that keeps every run consistent.
Spec-Driven Development
Supports PRP, PRD, SpecKit, and BMAD, turning specs into shipping plans without drift.
Works with Major AI Platforms & IDEs
Seamless compatibility with the leading AI models and IDE agents you already use.
Secure-by-Default Guardrails
Production-grade security comes built in, ready for humans and agents alike.
Template Intelligence
Copy-paste patterns let agents ship auth, billing, UI, and tests that feel on-brand.
Testing-First Core
Test-first automation keeps every AI change accountable and regression-free.
Auto-Generated Documentation
Documentation updates itself and keeps everyone on the same truth.
AI Architecture Planner
AI-generated plans map the work before coding begins.
AI-Assisted Git & PRs
Commit helpers and PR checklists keep reviews fast and predictable.
Assisted AI Debugging
Debug playbooks guide every fix from symptom to verification.
MCP-Ready Integration
Model Context Protocol support lets agents call tools without sacrificing control.
Pricing
One-time purchase. Unlimited launches.
StarterApp ships with a permissive license that covers unlimited teammates and projects for personal or commercial work. Review the license.
StarterApp mirrors a production SaaS stack (Next.js 15, Convex, BetterAuth, Stripe) so teams start from a proven architecture instead of wiring pieces together first.
Built-in AI workflows, security guardrails, and compliance-friendly defaults mean you can ship confidently with CSP, CSRF, and rate limiting already in place.
StarterApp is the fastest path from prompt to production, pairing AI-native tooling with a codebase that is ready on day one.
- Complete StarterApp source codeComes with full codebase of live demo.
- Core SaaS foundationAuthentication, billing, security, analytics, and AI tooling ready to ship.
- AI-assisted onboarding and full documentationKick off with a single AI initialize command that sets up the project, installs dependencies, and adapts the codebase to your SaaS.
- Backend fully configured and integratedConvex database, Stripe billing, and backend helpers connected with typed interfaces.
- Testing stack ready to runVitest unit suites, integration harness, and Playwright end-to-end flows included out of the box.
- AI command center25 AI commands including AI architect, code reviewer, marketing text polisher, and performance auditor. View all.
- Lifetime updates and new releases
Frequently Asked Questions
Answers to pricing, licensing, and technical onboarding so you know exactly what comes next.
Still need clarity?
We reply within one business day. You can also hop into the community Discord for live help.