How to Build Real-Time Stablecoin FX in Your App with StableFX

Circle StableFX offers a solution for businesses seeking to use stablecoins, like USDC, for real-time cross-border payments by eliminating traditional FX infrastructure constraints. This onchain FX engine integrates institutional RFQ execution with automated payment-versus-payment (PvP) settlement on Arc, an open Layer-1 blockchain, enabling stablecoin currency pairs to be quoted, confirmed, and settled onchain 24/7 without prefunding or bilateral agreements. The process involves using the StableFX API for requesting quotes, creating trades, and submitting funding for onchain settlement using Circle Wallets and EIP-712 typed data. StableFX is designed for institutions that have completed Circle's KYB/AML verification and involves a structured workflow that includes wallet creation, funding approval through Permit2, trade initiation, and signatures for trade intent and funding. The platform aims to facilitate quick, transparent, and programmable onchain FX transactions, providing a framework for developers to embed stablecoin-denominated FX into various economic applications. Despite its innovative approach, StableFX is offered by Circle Technology Services, LLC as a software solution and does not provide regulated financial or advisory services, placing the responsibility for compliance and licensing on the users.