Stablecoin settlement has moved from experiment to execution. Payments leaders from Fireblocks, Nuvei, and EY break down how PSPs go from pilot to launch. In 2025, stablecoin transaction volume hit $33 trillion, surpassing Visa in annual throughput, and 86% of firms now say their infrastructure is ready. For payment service providers and B2B payments firms, the question is no longer whether to build a stablecoin strategy. It's how to ship one that differentiates.