White-label exchanges are designed to support multi-currency trading by incorporating features that allow users to trade various cryptocurrencies and, in some cases, fiat currencies. These platforms come with pre-integrated APIs and backend support for handling multiple wallets, ensuring the seamless exchange of digital assets across different pairs. The architecture is scalable, meaning new tokens or coins can be added without disrupting existing operations. Providers like Blockchain App Factory offer customizable white-label solutions, enabling businesses to easily add multi-currency support, integrate liquidity from global markets, and provide a smooth user experience across different cryptocurrencies.