Payments for coding agents
Own every purchase, from the first tap to the payout.
The in-app-purchase and paywall platform built for coding agents. Drop-in SDKs, server-side receipt validation, remote paywalls, and revenue analytics — wired end to end in under an hour.
No credit card · Live in under an hour
Every store and method, out of the box
One platform
Watch the money move.
Every purchase runs the same path on CashSDK. Follow one from tap to bank.
Unlock Pro
Everything you need, no limits.
Cancel anytime · Restore purchase
1 · Paywall
A native paywall renders
Priced and copied remotely — no App Store review to change an offer, run a promo, or test a price.
2 · Purchase
The user taps buy
StoreKit or Play Billing handles the transaction natively. The SDK never sees a card or a secret.
3 · Validation
The receipt is verified server-side
Checked against the store with replay and fraud detection on every transaction before anything unlocks.
4 · Entitlement
pro unlocks instantly
Access syncs across iOS, Android, and web in real time — one source of truth for who has what.
5 · Payout
Revenue lands in analytics
Reconciled to the cent against the stores, ready to explore, benchmark, and export whenever you want.
One platform
Everything you need to sell in your app
The full purchase stack, from the first tap to the revenue report.
Entitlements everywhere
One source of truth for who has access, synced across iOS, Android, and web in real time.
Learn moreServer-side validation
Every receipt verified against Apple and Google, with replay and fraud checks built in.
Learn moreWebhooks
Stream purchase, renewal, and cancel events straight into your own systems.
Your data, exportable
Normalized purchase and subscription tables you can export any time.
Remote paywalls
Ship paywalls without shipping an app
Design paywalls in the dashboard and change pricing, copy, and layout over the air.
- Drag-and-drop paywall builder
- Update offers without an App Store review
- Target by platform, region, and cohort
Receipt validation
Trust every purchase
Receipts are verified server-side against the stores, with replay and fraud checks on every transaction.
- Signature and replay verification
- Real-time fraud scoring
- Entitlements bound to the right user
Revenue analytics
Numbers you can actually trust
MRR, LTV, trial conversion, and churn, computed from your raw events and reconciled against the stores.
- Real-time MRR and subscriber movement
- Cohort retention and LTV curves
- Reconciled down to the cent
Subscriptions
Every state, modeled for you
Trials, renewals, grace periods, and win-backs are tracked automatically across every platform.
- Full lifecycle state machine
- Grace and billing-retry handling
- Cross-platform entitlement sync
Built for developers
A few lines to your first purchase
Typed, native SDKs wrap StoreKit and Play Billing so you configure once and let CashSDK handle the rest.
- Idiomatic APIs for every platform
- Sandbox mode with real seeded data
- Entitlements that sync across devices
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Made for builders
Software that respects your time — and your revenue.
CashSDK is the purchase stack we wanted as developers: typed SDKs, honest analytics, and data that stays yours. Point your coding agent at it and ship the whole thing in an afternoon.
Built to scale
Teams run their whole purchase stack on CashSDK
Loved by builders
Teams trust CashSDK with their revenue
“We ripped out three services and a home-grown receipt server. CashSDK does all of it, and we finally own the data.”
“Remote paywalls alone paid for themselves. We test pricing weekly now without waiting on App Store review.”
“Setup was genuinely an afternoon. Entitlements sync across platforms and the analytics match our books to the cent.”
Take back control of your revenue
Integrated by your coding agent in under an hour. Own your purchases, paywalls, and data end to end.