StableFX

StableFX is an institutional-grade stablecoin FX engine built on Arc that combines Request-for-Quote (RFQ) execution with onchain settlement. This permissioned platform is designed for financial institutions including payment service providers, fintechs, crypto OTC desks, and prime brokers.

StableFX supports USDC and EURC and will expand to a broad range of local stablecoin pairs.

• Aggregated liquidity: Access competitive rates from multiple liquidity providers through a single API call
• Reduced settlement risk: Smart contract escrow ensures both sides of a trade settle simultaneously or not at all
• 24/7 settlement: Trade and settle around the clock with sub-second finality on Arc
• Simplified operations: Replace multiple bilateral agreements with one integration and eliminate reconciliation overhead
• Institutional workflow: API and SDK-based integration for programmatic quote requests and automated settlement

As a vetted institution, you can integrate StableFX to build:

• Cross-border payment flows with real-time currency conversion and settlement
• Institutional treasury systems for managing multi-currency stablecoin positions
• FX liquidity services for your customers, embedded directly in your platform
• Remittance solutions that eliminate T+2 settlement delays and counterparty risk

StableFX uses an RFQ model with two participant types:

• Takers request quotes and execute trades through the API
• Makers provide liquidity by responding to quote requests

Execution happens offchain via API while settlement occurs onchain through smart contract escrow on Arc. This ensures payment-versus-payment settlement where both sides settle or neither does.

The StableFX API handles both offchain and onchain steps, so you don't need to interact with smart contracts directly.

Try StableFX in the sandbox environment:

• Create an FX trade as a taker: Request and execute a USDC to EURC trade
• Fulfill an FX trade as a maker: Fulfill existing trades and provide liquidity