Stablecoin payments entered Singapore's mainstream rails as OKX launched a service. Customers can pay GrabPay merchants with USDC and USDT; funds convert via XSGD and are settled in Singapore dollars. The option reflects rising merchant interest. OKX's product, branded as OKX Pay, connects crypto wallets to Grab's payment network in Singapore. Users pay with USDC or USDT, which are routed into StraitsX's XSGD stablecoin before merchant settlement in SGD. In this setup, the conversion step reduces direct crypto settlement frictions. The service launched on September 30, 2025, in partnership with StraitsX and Grab, and it operates by letting users scan GrabPay SGQR codes to initiate on‑chain transfers that are converted and settled in fiat, according to the StraitsX announcement and Reuters coverage.