For End Users
Pay online. Simply. Securely. Without intermediaries.¶
You don't need to understand the infrastructure to use it.¶
When you pay with a card online, you don't think about the issuing bank, the card network, the acquiring bank, or the settlement cycle. You enter your details and click confirm.
The Stablecoin Stack is designed to work exactly the same way — with a level of security and simplicity that traditional payment methods have never been able to offer.
What it feels like¶
- Open your wallet app. When a merchant uses the Stablecoin Stack, their checkout page displays a QR code or a deep link. You scan it with your wallet app, or tap the link on mobile. The payment details load automatically.
- Review the payment. Your wallet shows you exactly who you are paying, how much, and in which currency. You can verify every detail before confirming anything.
- Confirm with your device. You approve the payment using your device's standard authentication — fingerprint, face recognition, or PIN. That's your authorisation. Nothing moves without it.
- Done. The payment is confirmed, typically in seconds. You receive a confirmation on screen. No waiting for a receipt email that might never arrive.
What's different — for you¶
Your money can only move with your permission¶
Traditional payment systems work by delegating authority to intermediaries. When you give someone your card number, you are giving them a credential that a third party — the card network — will honour.
In the Stablecoin Stack, your authorisation is cryptographic. It is produced by your device and is mathematically specific to that exact payment, to that exact merchant, for that exact amount. It cannot be used for any other payment. It cannot be replicated.
Nobody holds your money on its way to the merchant¶
In the non-custodial configuration of the Stablecoin Stack, your payment goes directly from your wallet to the merchant's wallet — via the settlement contract. There is no intermediate account where your funds sit for a day or two while the system reconciles.
You don't need gas tokens or technical knowledge¶
In many blockchain-based payment systems, users need to hold a separate "gas token" to pay for network transaction costs. The Stablecoin Stack eliminates this requirement entirely. The processor covers transaction costs and recovers them through the processing fee. You hold only the currency you want to spend.
Frequently asked questions¶
What currency am I actually paying in?
You pay in a stablecoin — a digital token pegged to a familiar currency like the US dollar or the euro. One unit of USDC, for example, is designed to be worth one US dollar.
When a merchant prices their goods in dollars and you pay in USDC, you are paying the exact dollar amount shown. There is no surprise conversion and no exchange rate to worry about.
Is this safe?
Yes. The security of the Stablecoin Stack is based on cryptographic signatures, the same mathematical foundation used to secure internet banking, online tax filings, and digital contracts worldwide.
Your approval is required for every payment. No one can move your money without a valid signature from your device. Even the payment processor — the company running the infrastructure — cannot move your funds without your authorisation.
What happens if I send to the wrong address?
Payments made through the Stablecoin Stack are irreversible by design. This is a feature, not a limitation — it means no one else can reverse your payments either, including fraudsters.
This means you should always verify the merchant and amount carefully before confirming. Reputable merchants using the Stablecoin Stack will display their details clearly in the checkout flow.
Do I need a special wallet?
You need a wallet application that is compatible with the Stablecoin Stack. As the ecosystem grows, more consumer wallet apps will support this. Check with the merchant or processor if you are unsure which wallet to use.
What if I want a refund?
Refund policy is determined by the merchant, just as with any other payment method. A processor offering a managed service may handle refunds at the fiat disbursement level.
Because payments cannot be reversed at the network level, refunds are processed as new payments from the merchant back to you — not as reversals. This is actually more reliable: a refund that goes through is a real payment, not an administrative cancellation.
Do I need to hold stablecoins before I can pay?
To pay using a Stablecoin Stack-powered checkout, you need to have the relevant stablecoin in your wallet. Some wallet providers offer easy on-ramp services to convert your local currency. Ask your wallet provider for guidance.
The bigger picture¶
The Stablecoin Stack is part of a broader shift in how payment authorisation works — from identity-based delegation (a third party vouches for your transaction) to verifiable commitment (your signature is the transaction).
This shift matters because it gives you, the payer, genuine authority over your own money. Not authority granted by an institution. Authority that is yours by default.
You don't need to understand this to use it. But you should know that it is working for you every time you make a payment.