Coinbase Wallet connects to merchant checkouts through the WalletConnect protocol or through direct browser extension integration, depending on the customer's device and wallet configuration. On desktop, the customer may connect through the Coinbase Wallet browser extension directly or scan a WalletConnect QR code with the mobile app. On mobile, the connection uses deep linking to open the Coinbase Wallet app. The integration must handle both pathways to ensure the checkout works for every Coinbase Wallet user regardless of how they access their wallet.
27 Blockchain's Coinbase Wallet integration service configures both connection methods and detects the customer's environment automatically. The checkout presents the appropriate connection flow based on whether the customer is on desktop or mobile, and the payment experience remains consistent across both. This device-aware connection handling is part of the standard deployment.