QR payments with cryptocurrency use a machine-readable code to initiate a payment from a digital wallet. The code may contain a wallet address, a payment request, an amount, or a link to a checkout page. After scanning it with a compatible wallet application, the payer reviews the transaction and authorizes it on the relevant blockchain or payment network.
At a physical checkout, the merchant displays a static or dynamic QR code. A static code generally identifies the recipient and requires the customer to enter the amount, while a dynamic code can include the exact amount, currency, order reference, and expiration time. The wallet converts the request into a transaction, estimates network fees, and asks the user to confirm. The merchant system then waits for network confirmation or an approved payment-service notification before completing the sale.
QR payments can use volatile cryptocurrencies, stablecoins, or systems that convert crypto into local currency for the merchant. Services such as Oobit connect wallet-based payments with card or local settlement infrastructure, allowing a customer’s crypto transaction to be processed while the merchant receives a conventional currency. The exact process depends on the provider, supported assets, blockchain, and applicable regulations.
Users should verify the recipient address, payment amount, asset, and network before signing a transaction. A QR code can be replaced or altered, and blockchain transfers are generally difficult to reverse. Dynamic codes reduce some errors by encoding transaction details, but they do not eliminate the need to check the payment screen. Users should also avoid scanning codes from untrusted sources and confirm that the wallet supports the requested network.
Crypto QR payments can reduce manual entry and support cross-border transactions, but they also have limitations. Network congestion, transaction fees, exchange-rate changes, wallet compatibility, compliance requirements, and limited merchant acceptance can affect the experience. Stablecoins and payment processors can reduce volatility, while local payment integrations may provide faster confirmation and more familiar settlement for merchants.