Website: https://www.xaigate.com/top-7-crypto-payment-service-providers-comparison/. Top 7 Crypto Payment Service Providers in 2026: Comparison, Compliance & Global Insights. In 2025, crypto payment service provider have become the financial backbone of global digital commerce. These fintech platforms enable merchants to accept cryptocurrencies and stablecoins like USDT and USDC, offering instant cross-border settlements with lower fees than traditional systems.