Rialto | 216 followers on LinkedIn. The Operating System for new stablecoin economies | Rialto is the Operating System for new stablecoin economies. Through its API and user facing app, Rialto's clients can perform stablecoin payments accros most jurisdictions in the world and in 20+ fiat currencies. Spin up wallets and accounts with IBANs or access the best in class treasuries opportunities.