All in Pay

Allinpay International is a payment gateway specializing in Asian cross-border transactions, serving merchants primarily in Hong Kong and Singapore. They provide a unified API (OATS) that integrates major payment methods including Alipay, WeChat Pay, UnionPay QR, PayNow, and regional e-wallets through Alipay+. The platform supports both online and in-store payments via QR codes, H5, web, and mobile apps with multi-currency processing and real-time transaction management.