Why build with AI coding agents?
AI coding agents are great at generating code, but they’re only as effective as the context you give them. In real SaaS codebases, agents need to understand:
- project structure (where to put things)
- architectural conventions (server vs client, API patterns, auth + billing flows)
- how to run checks (linting, formatting, tests)
- what “done” means (acceptance criteria, UX expectations)
Without that, you get inconsistent changes, wrong file placement, or “works on my machine” edits.
What is AGENTS.md?
AGENTS.md is the open specification for repository instructions: a simple, agent-friendly file that describes how this repository works.
It is readable by humans and consumed by coding agents so they can:
- pick the right folders and patterns
- follow the code style and conventions
- run the correct commands before finishing
- avoid risky changes (secrets, configs, infra)
supastarter also ships Agent Skills — on-demand workflows for features, auth, payments, tests, and more. Together, AGENTS.md and Agent Skills are a single source of truth that works across all major agentic coding tools.
Works with popular coding agents
Because AGENTS.md and Agent Skills are open specifications, the same repo instructions work across tools like:
- Cursor
- Claude Code
- OpenAI Codex
- Windsurf
- GitHub Copilot
supastarter: a production-ready foundation for agent-driven SaaS coding
With supastarter you’re not starting from a blank repo. Your agent starts from a solid base that already includes the “hard parts”:
- authentication and user flows
- organizations / multi-tenancy
- billing and subscriptions
- emails, analytics, monitoring
- background jobs and scheduled tasks
- a modern UI system and customization docs
That means your AI agent can focus on building your product features instead of reinventing infrastructure.
Recommended workflow
- Start with supastarter’s Next.js starter kit.
- Let your agent read
AGENTS.mdand the relevant Agent Skills first. - Give the agent a scoped feature request (UI + API + tests).
- Have the agent run lint/tests before it finishes.
You’ll get more consistent diffs, fewer “mystery” changes, and faster iteration as your SaaS grows.
An AI-ready codebase that scales
Built on the AGENTS.md and Agent Skills specifications, so any major coding agent can extend this Next.js, React, and TypeScript SaaS — including Cursor, Claude Code, Codex, and more.
- Agent Skills spec for SaaS workflows
- AGENTS.md specification included
- Structured monorepo agents can navigate
- End-to-end type safety
- Works with Cursor, Claude Code, Codex, and more
Authentication that you can actually ship
Don't let an agent invent your login system. Ship password, passkeys, magic links, OAuth, and 2FA on a proven flow you own.
- Own your user data
- Password, Passkeys & magic link
- 2FA
- oAuth
- Forgot/reset password flow
- Roles & permissions
- Super Admin & impersonation
- Fully customizable flow
Charge your customers
Billing is where generated code quietly breaks. Checkout, webhooks, and subscriptions are already wired — switch providers without rebuilding.
- Choose your payment provider
- Complete billing flow
- Subscription or one-time payment
- Usage-based billing
- Billing components
- Seat-based billing
Choose your plan
Ready for organizations on day one
Organizations, invites, and roles are already modeled so agents extend them instead of inventing a tenancy scheme.
- Create organizations & add members
- Seat-based billing
- Require / hide / disable organizations
- Member roles
- Easily removable
Reach customers worldwide
Agents can translate strings. They rarely leave you a real i18n architecture. Locales, a language switcher, and translatable mails are already in place.
- Reach more customers
- Ready-to-use translations
- Language switcher
- Translatable mail templates
Welcome back!
Your dashboard is ready
A backend your agents can extend
A typed database and API is the contract agents should extend — not a new data layer every prompt.
- Type-safe data access
- Choose your database and ORM
- Typed API with permissions
- Easy migrations
- OpenAPI specs and UI
- Reusable client
GET /api/users/{id}Ship AI features, not plumbing
Add chatbots, agents, or structured generation on a foundation that's already wired — instead of inventing the plumbing each time.
- Build any AI workflow
- Chatbot example included
- Multiple AI adapters
- Ready to extend
A site that converts on day one
A landing page is cheap to generate. A conversion-ready marketing site that matches your app is the part agents keep reinventing.
- Landing page & hero
- Features & pricing sections
- Newsletter signup
- Responsive design
A UI that doesn't look like AI slop
AI will invent a new design system every session. Start from a customizable UI so agents restyle your product instead of rewriting it.
- Modern, beautiful UI
- Fully customizable
- Dark mode
- Mobile-first
- shadcn/ui compatible
Every building block you need to ship a SaaS.
SaaS Analytics
Notifications
Offline Development
SaaS Onboarding
Contact form
SaaS Legal Pages
Supastarter was extremely easy to get set up and deployed. I had a working project in just a few minutes!
Thank you Jonathan 🫡, @supastarter definitely saved us a couple of weeks of bootstrapping the new website!
View project →I'm very happy with this Next.js boilerplate! The codebase is well-structured and secure, making it a solid foundation for my app. Highly recommend it!
View project →We're a product development studio, and supastarter is the starting point for many of our SaaS projects. It saves us a ton of time so we can focus on what actually matters: building great products.
View project →When we first set out to build Spyglasses we knew we needed an MVP before we even considered fundraising. That led us to researching starter kits. We looked at a dozen before settling on Supastarter. It had all the features we needed plus strong Cursor integration, which was critical to us. Thanks to Supastarter we saved 7+ months on our development estimates and even managed to pull some nice-to-haves into our initial launch.
View project →I am a super happy customer, 10/10 recommend
View project →As someone experienced with backend development but with limited frontend experience, I knew from the beginning that I would need to use a starter kit. There were a few options, and I decided to go with supastarter. It turned out to be the right call. Supastarter + AI coding + some common sense and guidance -> the project was shipped much faster than I anticipated. I would definitely use it again and not build things like auth, org and user management, and many other things all SaaS businesses need from scratch. Highly recommended!
View project →The code is excellent and perfect for building complex apps, but what really sets supastarter apart is the support. Every time I needed help, I got a response incredibly fast. This kind of support makes all the difference when building serious projects.
View project →Supastarter is awesome! I can build my MVP with confidence and my team is happy with the development experience. Service support is excellent! This is the first time I've seen a PPP applied not from a course. Very helpful for indie hackers. Highly recommend!
I compared many SaaS boilerplates before choosing Supastarter, and it truly didn't disappoint. I launched two SaaS products quickly and smoothly, and I'm now recommending Supastarter to friends who want to start their own SaaS projects!
View project →As an experienced developer and an indie hacker, I prioritize speed when shipping products. After trying out Supastarter, I was genuinely impressed! Its built-in features allowed me to launch my latest product in just a few days—without getting bogged down by boilerplate. Supastarter will definitely be my go-to for future launches!
View project →I've stumbled upon the most cutting-edge SaaS starter I've ever encountered - it's not just about the polished visuals, but the entire technical foundation is built on modern best practices and tools, making it a true game-changer for anyone looking to launch a SaaS product.
I used @supastarter to kickstart the development of my SaaS, uppybe.com, and it has been an absolute game-changer. It saved me countless hours, allowing me to focus on what truly matters—building my business. @jonathan_wilke has created something invaluable. I highly recommend @supastarter!
Choosing Supastarter was one of the best decisions I made for launching my website, http://domainscore.ai. The template is incredibly well-designed and easy to customize, allowing me to get my site up and running in no time. The built-in features and integrations saved me hours of development work, and the end result is a polished, professional site that has already attracted over 2,000 UVs within its first week. The support from the Supastarter team has been outstanding, and I truly appreciate their attention to detail and commitment to helping creators succeed. The fact that Supastarter's official Twitter account even gave us a shoutout speaks volumes about their dedication to their users. I highly recommend Supastarter to anyone looking to launch a high-quality website quickly and efficiently.
View project →I built the entire backend of my product, Phew AI Tab, using Supastarter, including the user system and payments and other api. Initially, I used Lemonsqueezy but switched to Stripe for specific reasons later on. I can't imagine how much time it would have taken without Supastarter; it only took a few days. What impressed me the most was the tech support from Supastarter. Even for issues not directly related to Supastarter, Jonathan provided timely and professional responses, which was a huge help and a great learning experience. Supastarter has grown even more powerful since I first used it. I highly recommend it to everyone starting their business, even up to a medium-sized team, as its comprehensive system can fully support growth. I'm so glad I chose Supastarter and I'm thankful for the team's support.
View project →It really saved me a lot of time, I don't know how long it would have taken if I hadn't had supastarter. It's an amazing project, I loved the clean architecture and easy to take off and put on whatever you need, excellent job!
This supastarter has change my life of developer. With my CTO we are launching a startup and this boilerplate has really accelerate the development. As a developer of 10 years experience, I see that this has been built based on strong knowledge of the development covering all aspects, infrastructure, backend frontend with letting always the easiest way to customize. I would recommend it at 100% to a friend :) Well done Jonathan !
Grabbed my copy of the most supadupa #Nextjs #boilerplate back in December. The pace of releases and DX improvements is crazy. @jonathan_wilke gets it. After an exhaustive review this is the only #production ready #starter I found.
I'm using @supastarter by @jonathan_wilke ITS REALLY AMAZING 🔥
View project →I recently encountered a minor issue in a piece of software I was using, which prompted me to report the problem on Discord. To my surprise and delight, the response from the development team was incredibly swift. Within just 10 minutes, not only had they addressed my concern, but they also committed the fix to GitHub. I was thoroughly impressed by the speed and efficiency of the team's action. It's rare to receive such prompt and effective support. This experience has certainly raised my expectations for customer service in the tech industry. Kudos to the team for their exemplary service!
Supastarter is truly an exceptional startup template! It boasts an impressive structure and exudes professionalism right from the start. The authentication options provided are top-notch, seamlessly integrated into the system. Additionally, the databases and other components are designed with efficiency and effectiveness in mind. The thoughtful consideration for serverless solutions is evident, showcasing a forward-thinking approach to modern development challenges. I adore the layout and highly recommend it as a startup template to others. It has saved me a tremendous amount of initial time in my project, proving to be an invaluable asset.
Supastarter has helped me launch a new product in record time - it gives you everything you need to get up and running quickly, and provides a framework to work on top of. Easily the best investment I've made in my SaaS product. Well done!
View project →If I would need to start a newSaaS from scratch, I would definitely choose supastarter for it. I love the provided tools & libraries, the documentation is good and you get help in its Discord community.
Jonathan's Supastarter has taught me a lot. Great separation of concerns and code quality here. Learning from an actual codebase is far superior to watching the best video course ever.
Supastarter helped a ton with getting my project off the ground! You get authentication, prisma db connections, migrations, marketing and saas folders for your app, the damn complex payment subscription hooks setup. It's gonna save you weeks of having to slouch through your side project because Stripe hook doesn't work / connecting your data to your users is hard. At this price, Supastarter is unbeatable in helping you cut down on development time and speed 🚀
Supastarter was exactly what I was looking for to help spring board my first react SaaS web app and at a reasonable price point. The pre-built landing page, signup, database, light/dark theming setup gave me a guideline of good practices to follow and allowed me to get right to prototyping my ideas.
View project →Supastarter is just awesome! It helped me go from scratch to authentication and payments integrated in minutes. Jonathan (the founder) is excellent and ready to support you every step of the way! I don't think there's a better way to kickstart your next SaaS!
Supastarter is truly a blessing for developers! It greatly simplifies the project creation process, helping us save a whole week of development time. This solution is not only efficient but also very suitable for team collaboration, allowing us to focus more on innovation and bringing our ideas to life.
View project →If you are in the market for a boilerplate for your next web-based project, you should check out @supastarter. I bought it, and it checks out after I reviewed the code a bit. I'm looking forward to using it for all of my web-based side projects going forward.
One-time purchase. Lifetime access.
No subscriptions. No recurring fees. Choose seats for how you ship — solo, startup, or agency — and start today.
Solo
Launch your first SaaS without hiring a team.
- 1 Developer Seat (GitHub access)
- Unlimited Personal Projects (Commercial use allowed)
- Lifetime Updates
Startup
Get your whole team building on one shared foundation.
- Up to 5 Developer Seats
- Unlimited Team Projects
- 60-min consulting call included
Unblock your launch — setup, architecture & go-to-market tech choices
- Priority email support with faster response times
- Marketing site + product app ready to customize
Agency
Deliver client SaaS projects without reinventing the stack each time.
- Up to 10 Developer Seats
- Unlimited Client Projects
- 60-min consulting call included
Unblock your launch — setup, architecture & go-to-market tech choices
- White-label ready: ship under your agency brand
- Private Discord channel with direct founder access
- Pays for itself on your first client project
- Everything in Startup: team seats, priority support & consulting
Expert consulting call
60 minutes of 1-on-1 guidance to unblock your launch — setup, architecture, and go-to-market tech choices.
Done for you development
Don't have time to build? FeatherFlow ships your MVP or full SaaS for you.
Real products shipped on this foundation
From indie MVPs to agency client apps — proof you can go from idea to live product.











