Ship a real
SaaS
still on . today.

Describe your idea. Get a working repo with auth, billing, schema, and chosen providers already wired. Run one command. Start building features.

Typical setup time: 5-10 minutes from fresh clone to working checkout.

View video proof

You own the repo. No lock-in. MIT core.

idea.prompt generated-repo
U

AI habit tracker with team plans, stripe subscription, and email notifications.

bun dev
Loaded env vars from .env.local
Convex dev server running
Stripe webhooks listening

// src/routes/checkout/+server.ts

await billing.checkout({

  priceId: "price_pro_monthly",

  successUrl: "/dashboard",

  customerId: ctx.user.stripeId

});

Ready on http://localhost:5173

The Architecture Flow

From idea to production in seconds. Swap any provider instantly—no migration headaches.

USER
YOUR CODE
GitHub
GitHub
Google
Google
UploadThing
UploadThing
AWS S3
AWS S3
Stripe
Stripe
Lemon Squeezy
Lemon Squeezy
Resend
Resend
AWS SES
AWS SES
PostHog
PostHog
Datafast
Datafast

Every SaaS Starts the Same.
And It’s Always Annoying.

Auth Setup Hell

OAuth config. Sessions. Edge cases. Role logic. Spending 3 days just to let users log in.

Stripe Webhook Chaos

Retries. Idempotency. Test vs live mode. Broken upgrades. Debugging failed payments instead of shipping.

Schema Guesswork

Wrong relations. Future migrations. Performance mistakes. Realizing your data model is broken 2 months in.

You didn’t start your idea to debug infrastructure.

From Idea to Running SaaS in Under 1 Hour.

Choose Your Providers

Stripe, Resend, PostHog, UploadThing, and more.

Describe Your Idea

Our AI Architect designs your database schema following best practices. You review everything.

Run One Command

npx keystone-init
Prompts for env keys & writes .env
Merges selected modules
Injects analytics snippets
Installs dependencies

bun dev

Working SaaS. Auth live. Checkout works. Analytics connected.

What’s Already Done For You

You start building product features. Not infrastructure.

Authentication

  • • GitHub OAuth
  • • Email / password
  • • Session management
  • • Role support

Billing

  • • Stripe checkout() pre-wired
  • • Webhook handling
  • • Customer portal
  • • Upgrade & downgrade logic

Database

  • • Typed Convex schema
  • • Relations structured properly
  • • Ready for scaling

Email

  • • Transactional email wiring
  • • Provider auto-merged

Analytics

  • • Snippet auto-injected
  • • Environment-aware setup

Developer Experience

  • • Env validation
  • • Dependency installation
  • • Clean TypeScript structure
  • • No hidden runtime dependencies

Not a Template Generator.
An AI Architect.

1

Designs database schema using best practices

2

Structures relations properly

3

Prevents common modeling mistakes

4

You review and approve before generation

You stay in control. The AI accelerates you.

Architect Mode
B2B invoice SaaS with team roles and subscription tiers.

I've designed a schema for that. Key structures:

teams: {
  name: string,
  tier: "free" | "pro",
  subscriptionId: string?
},
invoices: {
  teamId: v.id("teams"),
  status: "draft" | "sent"
}

Does this look right for your multi-tenant setup?

Looks great, proceed with generation...

Who This Is For

Indie Hackers

Launch faster. Test ideas quickly. Stop wasting time on boilerplate.

SaaS Builders

Stop rebuilding the same infrastructure for every new project.

Agencies

Ship multiple products without rewiring billing every time.

Not for...

No-code users

Enterprise legacy systems

People who don’t know Git

Confidence comes from exclusion. We build for developers.

Why Not Just Use a Boilerplate?

FeatureTypical BoilerplateKeystone
Schema designManualAI-generated + reviewed
Stripe setupDocs to followcheckout() works immediately
Provider setupCopy-pasteAuto-merged modules
Env managementManualPrompted + saved automatically
Dependency installManualAutomated
Lock-inSometimesNone

Build Faster. Ship Today.

One-time payment. Own the code forever.

Community

$0

Core base stack. Manual setup.

GitHub
  • Core Base Stack
  • Manual Setup
  • Community Support
Most Popular

Pro

$149

For serious builders.

  • 3 Project Generations
  • All Provider Modules
  • AI Architect Access
  • 1 Year of Module Updates

Agency

$499

Unlimited internal + client use.

Contact Sales
  • Everything in Pro
  • Unlimited Projects
  • Client Projects
  • Priority Support

Frequently Asked Questions

Stop Rebuilding Infrastructure
Every Weekend.