Your code. You own it.
Coded, built, tested, verified.
Pick the hard part of your product. Paste one prompt into Claude Code or Cursor. Your agent builds it, and a test suite tells you when it’s actually done — potentially skipping weeks of iteration. Then check our receipt: we ran the same build ourselves and published exactly how it went, including the packs that pass 2 of 3.
You own the code, forever
We don’t host anything or run anything. Your agent builds it in your repository, and it stays yours if we disappear tomorrow. No runtime dependency on us, no account, no API key.
Know the AI bill before you start
Every pack publishes what the build actually cost us in tokens and dollars when we ran it. Not an estimate — a measurement, on the receipt, before you buy.
One price, not another subscription
Buy it once. No seats, no monthly minimum, nothing that grows with your usage. The alternative to renting this from a SaaS forever is building it — this is how you do that in an afternoon.
01
Buy the pack
You get a folder: what to build, how it should be built, and the tests that decide when it is done. Every hard decision already made.
02
Feed it to your agent
Paste the pack’s prompt as your first message and leave it running. It works through the build itself, using a cheaper model where it can.
03
Verify
Run one command. Every check prints pass or fail. Green means done — and you can compare it against the receipt we published before you bought.
Catalog
App Store Machinery
$129Sell subscriptions and one-time unlocks in your iOS app, and get it through App Review.
You have an iOS app and need to start charging for it.
swiftui-storekit2-node
3 of 3 runs passedTransactional Email Deliverability Core
$79Send transactional email that actually lands, and stop emailing people who bounce or complain.
Your app sends signup, reset and receipt emails, and you're worried about your sending reputation.
nextjs-postgres-resend
3 of 3 runs passedMarketplace Payouts & Connected Accounts
$199Take payment from buyers and pay out sellers, with the onboarding and identity checks Stripe requires.
You're building a marketplace where money moves between two sides.
nextjs-prisma-postgres
3 of 3 runs passedProduct Feed & Merchant Center Compliance
$129Get your products into Google Shopping and keep them from being rejected.
You run an online store and want your products listed on Google.
nextjs-feed
2 of 3 runs passedMulti-Tenant Auth & RBAC Core
$149Sign-in, organisations, invites and roles — with one customer's data provably unable to reach another's.
You're building software sold to companies, where each customer has their own team.
nextjs-postgres
2 of 3 runs passedOffline Sync Engine
$99Let your app keep working with no internet, then merge the changes correctly when it reconnects.
Your users need the app to work on a plane, a job site, or a bad connection.
nextjs-dexie-postgres
2 of 3 runs passedPlay Billing Machinery
$149Sell subscriptions in your Android app on the Billing Library version Google requires from 31 August 2026.
You have an Android app that charges money — and a hard deadline.
android-kotlin-node
3 of 3 runs passedSaaS Billing + Tax Core
$149Charge per-seat subscriptions: upgrades, downgrades, failed cards, invoices and sales tax.
You're selling software by subscription and billing is about to get complicated.
nextjs-prisma-postgres
3 of 3 runs passedScheduling & Availability Core
$99Bookings and availability that survive timezones, repeating events and daylight saving — without double-booking.
Your product lets people book time, and the calendar maths is going wrong.
node-postgres
3 of 3 runs passedSecrets & Config Starter
FreeStop your app booting with a missing setting, and stop passwords leaking into your logs.
Any Node or TypeScript service. Free, and the fastest way to see how a pack works.
node-typescript
3 of 3 runs passedWebhook Durability & Replay
$149Receive webhooks without losing, duplicating or misordering them when the sender retries.
Something important in your app happens when Stripe, GitHub or Shopify calls you.
nextjs-postgres-worker
3 of 3 runs passedWebhook Signature Verification Starter
FreeCheck that an incoming webhook really came from Stripe, GitHub, Shopify or Resend — and reject the ones that didn't.
You have a webhook endpoint. Free, and it takes about a minute to prove it works.
node-typescript
3 of 3 runs passed
How receipts work
Before a pack is listed, our verification harness executes it the same way you will — a fresh agent, a clean scaffold, the pinned model. The receipt is the machine-generated record of those runs, published in full.
- Pass rate, as M of N
- Our harness runs each pack from a clean scaffold N times on the pinned model and publishes exactly how many runs passed. Agent builds are stochastic — a pack that passes 4 of 5 is listed as 4 of 5, never as "always one-shots."
- Everything pinned
- The exact model id and exact dependency versions the runs used are locked into the receipt. What was verified is what you build with.
- Measured cost
- Token counts and wall time in the receipt are per-run means from real runs. The token figure on a catalog card is an estimate and is labeled as one.
- Tamper disclosure
- The receipt lists every scaffold file the building agent modified or deleted. An empty list means built pristine. Modifications are disclosed, not hidden.
- Pending means pending
- A pack without a completed verification run says "Verification pending" and publishes no numbers. We never invent them.