Take payments through your own provider.
The money goes straight to you.
Connect the payment provider your customers use in your country, with your own keys. Pay links, invoices, your online store, booking deposits and the till’s QR code are paid on the provider’s page, and the money settles straight to your bank. STAK never holds it.
AI inside the work you already do.
See every AI feature
- 20 payment providers on your own account
- STAK never holds your money
- Full and partial refunds
What it does
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Where your customers pay
- Pay links and invoices.
- Your online store and ordering site.
- Booking deposits and billing pages.
- The QR code on the till.
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Your account, your money
- You connect the provider with your own keys, and they are stored sealed in your vault.
- STAK checks the keys with a read-only call before the first payment.
- The money settles straight to your bank and never passes through STAK.
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Refunds and your books
- Full or partial refunds through the same provider.
- Every payment is posted to your books, with its receipt.
- Payouts imported and matched to your bank for the providers that report them.
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Built to be safe
- A notification never decides an amount: STAK reads every payment back from the provider before it posts a receipt.
- Provider notifications are signed and checked.
- A repeated request never creates a second payment.
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Card terminals
- Adyen card terminals on your own Adyen account: the till sends the amount to the terminal.
- Stripe Terminal readers on your own Stripe account, in the countries Stripe Terminal serves.
Payment providers
The payment account is yours, and the money settles straight to your bank.
StripeCards and wallets through your own Stripe account, where it serves your country
PayPalPayPal checkout through your own account
Checkout.comOnline card payments in 33 countries, including Saudi Arabia, the UAE, Qatar, Bahrain, Oman and Kuwait
AdyenPay links and online checkout in 42 countries
MollieOnline payments in 32 European countries
SquarePayment links in the US, Canada, the UK, Ireland, France, Spain, Australia and Japan
PaystackNigeria, Ghana, South Africa, Kenya and Côte d’Ivoire
FlutterwaveOnline payments in 11 African countries
Mercado PagoArgentina, Brazil, Chile, Colombia, Mexico, Peru and Uruguay
XenditIndonesia, the Philippines, Thailand, Vietnam and Malaysia
MidtransOnline payments in Indonesia
iyzicoOnline payments in Turkey
PayUPoland, Czechia, Hungary and Romania
Adyen terminalsThe till sends the amount to the card terminal
Stripe TerminalStripe card readers on the till
Inside the app, STAK shows the providers that serve your country.
Good questions
Does STAK hold my money?
No. You connect your own payment account and settlement bank, so your money goes straight to you.
Do I need a payment provider to start?
No. You can record cash and other payments without one, and connect a provider when you are ready.
Which provider should I choose?
The one your customers use in your country. In Payments, Payment accounts, STAK shows you the providers that serve your country.
Your whole business. One stack.
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