Rio Trade

Rio (rio.trade, often listed as Rio Trade) is a stablecoin FX desk for Latin America. It is a company with no coin of its own. It has no link to Realio Network's RIO token. Fintechs, payment firms and exchanges use Rio to swap stablecoins for local money and back. As of October 2026 it quotes USDC, USDT, EURC and USAT against Mexican pesos, Colombian pesos, Peruvian soles and US dollars. Solana is one of eight networks it settles on. Rio is based in Mexico City and was in Y Combinator's Summer 2022 batch.

How Rio stablecoin FX works

A client asks Rio for a quote, accepts it, and the rate is locked. The client then pays one side and Rio pays the other. Stablecoins move on-chain; pesos and soles move over local bank rails.

Rio's API docs show the flow for buying stablecoins. You register a wallet address once, request a quote, and create an order. Rio returns bank details to pay into, including the CLABE in Mexico or the CCI in Peru. It spots the incoming transfer by itself, except for USD payments, which you confirm. Rio says it then sends the stablecoins "in the next few minutes". Selling runs the same way in reverse: you send stablecoins to Rio's address and it pays your bank account.

Quotes are short-lived. The docs tell you to read each quote's expiry time rather than assume a fixed window.

Rio API: market, limit, swap and T+n orders

Rio's API is now on version 2, which describes every trade as an origin and a destination, each with an asset and a network, so "USDC on Solana" is written as two fields. A migration guide says v1 fields still work while clients switch, with no end date given.

The order types are:

• Market orders, which fill at the quoted rate.
• Limit orders, set at an all-in price that includes taxes and fees. They can fill in part, can be given start and end times, and their quotes do not expire.
• Stablecoin swaps, for example USDT to USDC, or from one network to another.
• T+n orders, which settle on a set business day, up to four days out by default. They are not available in the United States.
• Bulk payments, which pay for many orders in one transfer.

Webhooks report order status changes with encrypted payloads. A sandbox lets developers test before going live. Rio also offers a web platform for clients who don't want to integrate, at the same prices.

Supported currencies, networks and minimums

Rio's currency list covers three countries. In Mexico you can use pesos or dollars. In Peru it is soles or dollars. In Colombia it is pesos. Its FX page counts 16 live pairs.

On Solana, Rio takes USDC, EURC and USDT. It also works on Ethereum, Polygon, Stellar, Base, Tempo, BNB Chain and Tron. Each chain has its own set of coins.

More currencies are "rolling out next", Rio says, with no dates. The list is the Brazilian real, the Chilean, Argentine and Dominican pesos, the Costa Rican colón, the Guatemalan quetzal and the euro.

Minimum orders are set in the currency you receive: 1 unit of any stablecoin, 20 MXN, 4 PEN, 6,000 COP, or 10 USD.

Rio cross-border payments and virtual accounts (beta)

Rio sells three products. Only one of them is live.

FX and liquidity is the live product. Clients trade over the API or platform, and a desk handles large or unusual trades 24/7.

Cross-border payments is in beta. It moves money in and out of Latin America, starting with US dollars to and from Mexican pesos. It includes payments to third parties.

Virtual accounts is also in beta. It would let a business hold balances in stablecoin wallets, named USD accounts and local MXN, COP and PEN accounts. It could convert at desk prices and fund payments from those balances. Rio says the stablecoin wallets are meant to be self-custodial.

Rio's own site says both beta products "have not launched and are subject to regulatory approvals".

Is Rio right for you?

Rio fits a business that needs to swap stablecoins for Mexican, Colombian or Peruvian money in volume, by API. Think of a neobank that pays out in pesos. Or a Solana remittance app that needs to cash USDC out to bank accounts. Or an exchange short of peso liquidity. Circle's partner listing calls Rio an OTC desk and market maker for clients like these.

It does not fit individuals. Rio sells to fintechs and firms, and new clients start by contacting its team. It also does not fit firms that need Brazil, Chile or Argentina now. Those are only planned. For Solana teams, Rio is a cash gateway. It offers no DeFi yield, no lending and no public pool to trade against.

Is Rio safe? Risks and regulation

Rio is a counterparty, and that is the main risk. You pay Rio first and trust it to pay out, much like an OTC desk. You do not trade against an audited smart contract. Rio lists no on-chain programs, and no smart contract audit has been published. Its developer page says security practices are "aligned with ISO 27001". That wording describes alignment, not a certification.

Rio's legal page names the entities you deal with:

• Rampa Blockchain, S.A.P.I. de C.V. runs FX in Mexico. It operates under Mexico's anti-money-laundering law as a reporting "vulnerable activity", which is not a banking licence.
• Rampa Machu S.A.C. covers Peru.
• Rampa Colombia S.A.S. covers Colombia.
• Rampa Labs Inc. is a US Money Services Business registered with FinCEN.

Rio states it is "a technology company, not a bank, and does not take deposits." It adds that stablecoins are not FDIC- or SIPC-insured.

Other things to check:

• Payments and accounts may change or slip while they await regulatory approvals.
• Quotes expire fast, and settlement dates can move with bank hours and holidays. The T+n docs warn about this.
• On Stellar, a USDC transfer without the required memo can be lost for good, the swap docs warn.
• Volume and client figures come from Rio and its partners. They are not audited.

Rio vs banks, OTC desks and local stablecoins

Rio pitches itself against banks and FX brokers. It claims spreads "built to beat traditional banks and FX brokers". It also offers one counterparty for the region and trades around the clock. Its October 2026 blog posts make the case for Mexico. One breaks down the cost of MXN conversion. Others compare the SPEI and SPID payment rails and track how peso liquidity shifts by the hour.

Ripio takes a different route. It issues its own local-currency tokens, such as wARS, wBRL and wMXN. It launched them in January 2026 on Ethereum, Base and World Chain, Cointelegraph reported. Rio trades dollar and euro stablecoins for cash instead. The two can work together: Rio's homepage lists Ripio among its partners.

For a Solana team, the trade-off is reach against ease. Rio settles native USDC, USDT and EURC on Solana. That gives a direct route from a Solana treasury to bank accounts in three countries. Teams that need Brazil or Argentina today will need another provider.

Rio volume, partners, team and history

Rio's homepage claims USD 12 billion in yearly volume, at its current run rate (October 2026). Polygon Labs said this year that Rio had passed USD 3 billion in FX volume settled on Polygon. Polygon, not Solana, looks like a main chain for Rio's trades.

The homepage shows Binance, Circle USDC$1.000-0.1%, Felix, Ripio, Tether USDT$0.999+0.1%, ARQ and Infinia as partners and clients. It does not say which is which. Circle lists Rio in its Alliance directory.

Y Combinator says Rio was founded in 2022 and joined its summer batch that year. The parent firm is Rampa Holdings Limited. CEO Eudelio Garza was a product manager at BlockVigil, which ran Matic nodes as a service. COO Ricardo Villarreal Chapa studied computer engineering at Boston University. He then worked on bank products and in private equity. CTO Javier Roberts is the third co-founder. Rio's about page shows a team of 12. It has leads for compliance, operations, finance, legal, QA and growth.

Rio's X account, @rio_latam, was quiet for the two months before this update. Its blog and docs were updated in October 2026.