Website: https://www.xaigate.com/how-to-integrate-usdt-payment-gateway-for-website/. How to Integrate a USDT Payment Gateway for Website or AppAs stablecoins continue to dominate the crypto transaction space, USDT (Tether) has emerged as a leading choice for businesses seeking fast, low-fee, and borderless payments. For developers, fintech startups, SaaS platforms, and e-commerce operators, integrating a USDT payment gateway is no longer a niche feature—it’s becoming a standard.