The USDC payment solution on the Base chain has achieved a complete closed-loop from wallet to offline consumption. The core logic is as follows: if users hold USDC assets on the Base chain, the system will intelligently distribute based on the consumption intent— in online subscription scenarios, the backend routing will automatically exchange for the designated token to complete the payment, with slippage optimization algorithms running throughout to ensure users get the best price; for offline consumption scenarios, it is more straightforward, and users can complete payments and settlements using Base chain USDC through POS machines. This solution seamlessly connects on-chain assets with offline payment scenarios, eliminating the need for frequent cross-chain exchanges and saving a lot of trouble. The entire process is managed by an intelligent routing layer to ensure that whether online or offline, users' Base assets can be utilized efficiently.