Building New Apps on Old Infrastructure
Stablecoins and fintech infrastructure
The real bottleneck in cross-border finance is the ledger and settlement layer, not the app on top. If a fintech still depends on SWIFT messages, batch settlement, and bank intermediaries, it still inherits multi day delays, opaque fees, and manual reconciliation. That is why Layer2 talks about replacing the bank core first, then rebuilding products like payouts, treasury, and remittances on top of faster rails.
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Layer2’s product is built around a concrete workflow shift. A customer can send in USDC, convert to USD, and then trigger dozens of local or cross-border payouts from one system, instead of stitching together a bank, FX provider, and separate payout tools. In one cited use case, international fund settlement that could take days over SWIFT settled in hours.
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This same stack logic is showing up in fintech more broadly. Column won Brex and Mercury by putting charter, ledger, rails, and compliance in one roof, replacing a three vendor setup with a single system. The lesson is that controlling the core infrastructure changes speed and unit economics, not just the user interface.
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Stablecoins matter here because they are not just a new payment button, they are a new settlement asset. Research across Layer2 and Rain shows the strongest demand is in cross-border use cases where businesses care about getting dollars or euros moved in minutes, with predictable arrival and lower cost, not about whether crypto is visible in the product experience.
The next phase is a hybrid market where the winners use stablecoins and other digital assets behind the scenes, while exposing a normal fintech experience on the front end. Over time, more of the old stack gets removed, more payment flows settle directly on digital rails, and the distinction between crypto infrastructure and fintech infrastructure starts to disappear.