Rio is a B2B stablecoin liquidity provider and foreign exchange platform serving Latin America, with primary operations based in Mexico. Founded in 2022 by Eudelio Garza, Javier Roberts, and Ricardo Villarreal Chapa, the company participated in Y Combinator's Summer 2022 batch and positions itself as the premier stablecoin infrastructure provider for the region. Rio enables financial institutions, fintechs, and developers to access stablecoin liquidity through multiple service offerings including liquidity provisioning, foreign exchange services, OTC trading, and API integrations. The platform facilitates conversions between local Latin American currencies and stablecoins such as USDT and USDC, providing institutional-grade trading infrastructure with competitive spreads and instant settlements. Rio's core value proposition centers on providing on-and-off ramp infrastructure that allows clients to move between fiat currencies and stablecoins at internet speed. The company operates across multiple Latin American markets including Mexico, Brazil, Colombia, Chile, Peru, and Argentina. Rio emphasizes compliance as a priority, implementing anti-money laundering policies that exceed regulatory requirements. The platform offers developer-friendly APIs designed for integration into fintech products, targeting financial innovators looking to incorporate stablecoin functionality into their services. According to the company's website, Rio maintains operations in Mexico City and serves institutional clients throughout the region. The company addresses a critical infrastructure gap in Latin American markets where access to dollar-denominated stablecoins has become increasingly important for cross-border transactions, remittances, and hedging against currency volatility. Rio's technology includes proprietary algorithms for maintaining tight spreads and a banking infrastructure designed to facilitate seamless fiat-to-crypto conversions.