Coinbase launches stablecoin payment stack Coinbase Payments Coinbase announced the launch of the "Coinbase Payments" service, which supports merchants to accept USDC stablecoin payments 24/7, with Shopify as the first integrated platform. This service is built on its Ethereum Layer 2 network Base and provides a payment stack without any blockchain knowledge threshold. Coinbase claims that the settlement amount of stablecoins reached $30 trillion last year, indicating huge market potential.