When Visa’s Stablecoin Platform went live, the headline takeaway for most observers was that banks can now touch stablecoins without building any of it in-house. Accurate enough. It’s also the less interesting half of the story.
The following is a guest post and opinion from Danyel Arenas, Co-Founder and CEO at KiiChain.
What the platform offers banks, fintechs and payment providers is a way to access, hold, move and redeem stablecoins within an environment Visa manages. Access gets better. And once access gets better, foreign exchange is no longer a footnote — it becomes the real constraint.
Moving value across a border is something a stablecoin can make simple. Determining which currency has to land on the other side is not.
Three countries, one asset, three different problems
Picture a fintech serving businesses in Brazil, Mexico and Colombia. Stablecoins hand it a single common asset for shifting value between those markets. Its customers, though, continue operating in their own currencies, because that is what their businesses actually run on.
FX pricing, sufficient liquidity, a conversion and a settlement are still required in every corridor. And each of those functions may live with a different provider behind a different integration, depending on the market. Expanding doesn’t simplify that. It multiplies it.
What was pitched as one asset across three markets becomes three sets of plumbing — and the fintech owns every piece.
Regulators have already noticed
In Brazil, the central bank now classifies activities such as international payments made with virtual assets, plus the purchase, sale or exchange of fiat-referenced virtual assets, as foreign-exchange operations.
That is a telling detail. The people drafting the rules are not calling this a crypto activity that happens to have an FX side effect. They are calling it FX.
Dollar liquidity doesn’t pay a payroll in reais
Broader use of dollar stablecoins could, in certain situations, cut into demand for local currencies — treasury holdings or international trade in particular. That effect is real. What it does not do is remove the need for local settlement.
Employees, taxes and domestic suppliers get paid by businesses in national currencies. Merchants set prices in whichever currency their customers actually use.
So even with USDC or USDT carrying the value across the border, an FX conversion typically still sits between that balance and anything usable on the ground.
Putting the peso on-chain isn’t the fix people think it is
Stablecoins denominated in local currencies can put the peso or the real on-chain, which makes them simpler to use alongside stablecoin-based payment infrastructure. Dollar stablecoins like USDC and USDT, for their part, remain important as sources of global liquidity — above all for cross-border payments and international trade.
The catch is that the two only function together where an efficient market exists between them. At some point in the flow, a peso stablecoin may have to become USDC, or reais, or something else altogether.
Absent enough liquidity, dependable pricing and efficient settlement between those assets, tokenizing more local currencies does almost nothing about the conversion problem underneath. The same friction has simply been relocated to a different rail.
The banking-hours mismatch
The connective tissue between the two sides is a functioning FX market. It allows liquidity to travel between global dollar stablecoins and local currencies, and it hands market makers a mechanism for rebalancing as demand shifts from corridor to corridor.
Liquidity access, however, is only one piece. Execution and settlement of the trade also have to keep pace with a payment system that runs around the clock more and more.
Banking hours remain a heavy dependency for traditional FX. Slot several intermediaries and correspondent banks into the chain and cross-border payments and currency settlement can stretch from hours into days. Stablecoins move at any time. The settlement layer beneath them does not.
What on-chain FX changes underneath
A different model applies with on-chain FX: pricing, liquidity access and settlement all operate outside banking hours. Pay-ins, payouts and FX swaps can run in parallel and settle with verifiable on-chain finality.
From a payment company’s perspective, that folds several fragmented functions into a single infrastructure layer. What concerns the provider is the currency the customer sends and the currency the recipient receives. Underneath, liquidity sourcing, conversion and settlement take care of themselves.
Entering new markets could get cheaper as well. Rather than rebuilding liquidity relationships and settlement processes corridor by corridor, providers could plug additional currencies into shared FX infrastructure.
The questions a business will actually ask
The easier stablecoins become for financial institutions to slot into payment flows, the more attention shifts to what is going on beneath the transaction.
Most of that will be invisible in the strongest cross-border solutions. Which stablecoin, network, bridge or liquidity source sits between the currency a business sends and the currency its counterparty receives is not something that business should have to know.
Four things matter from the user’s side: What currency am I sending? What currency will arrive? At what rate, and how reliably?
The answer to those questions determines how far stablecoin payments travel beyond digital dollars and into the part of the economy where rent, suppliers and tax bills get paid.