On April 29, 2026, Visa published — without disproportionate fanfare, with the institutional restraint that typically marks the company's communications — an update that deserves to be read as a silent milestone: its stablecoin settlement program reached, in annualized volume, $7 billion, with growth of 50% quarter over quarter. In the same announcement, the company announced the inclusion of five new blockchains in the settlement architecture: Base (Coinbase), Polygon, Canton Network, Arc (Circle), and Tempo (backed by Stripe). Added to the four already operational networks — Ethereum, Solana, Stellar, and Avalanche — the pilot program now runs on nine parallel blockchains, all operated as alternative layers for what has historically been a monopoly of SWIFT, Fedwire, and the correspondent banking system.
The absolute number, $7 billion, is small relative to Visa's main operation — around $13 trillion in gross annual volume. But it is precisely this contrast that makes the announcement significant. What Visa is doing is not an experiment; it is patient construction of parallel infrastructure at sufficient scale to move beyond pilot status and begin operating as a product. For a Brazilian reader who has been following the sequence of institutional moves covered by ON3X — from the integration of USDC into PIX by the Central Bank to the announcement from B3 about its own stablecoin post-Drex — the Visa move closes the frame: the digital monetary infrastructure of 2026-2030 is being built in parallel layers, with different actors occupying different levels of the stack.
What changed on April 29
Visa's stablecoin settlement program began in 2023, with USDC operating exclusively on Ethereum and Solana. The original proposal was pragmatic: offer partners — issuing banks, processors, and acquirers — an alternative to the correspondent banking system for settling transactions with Visa. Instead of waiting for market closing windows, T+1 or T+2 cycles, and banking operating hours, the partner could move USDC directly on one of the supported networks and Visa would credit the equivalent in fiat currency to the counterparty on the other end.
The design had two structural advantages that proved, over three years, to be decisive:
- 24/7 operation, independent of time zone or banking holiday in any jurisdiction.
- Near-instantaneous settlement, instead of the multi-day cycles inherited from the correspondent banking system — particularly important in cross-border payment corridors where banking closure at one end can delay settlement by days.
What changed on April 29 was the commitment to scale. Adding five blockchains at once — including networks operated by direct Visa competitors at other layers (Base is Coinbase, Arc is Circle, Tempo is Stripe) — is not the gesture of a company in exploratory phase. It is the gesture of a company that has made the strategic decision that stablecoin settlement is a permanent part of the portfolio, and that optimization is now about maximizing network optionality for partners.
Why five networks at once
The choice of networks is not random. Each of the five additions fills a distinct strategic space:
- Base. Coinbase's Layer 2, with strong integration to the most regulated US exchange in the sector. For institutional partners already operating with Coinbase Custody or Coinbase Prime, having Base as a settlement destination reduces operational friction.
- Polygon. The most surprising entry, in some readings. Polygon had been losing relevance in the crypto narrative since 2024, with TVL migration to Base and Solana. Inclusion of Polygon by Visa functions as institutional endorsement at a moment of decline — and technically offers lower fees and reasonable finality times for mid-range volumes.
- Canton Network. A private/permissioned network built by Digital Asset, with explicit focus on regulated institutional financial markets. The inclusion of Canton is the clearest signal that Visa is not betting exclusively on retail stablecoins — it is preparing to integrate with the next generation of corporate blockchain for asset tokenization.
- Arc. Circle's own network, optimized for USDC operation. Adding Arc is, in infrastructure terms, the equivalent of "moving closer to the issuer" — it reduces dependence on third-party networks for the main asset Visa currently uses for settlement.
- Tempo. A network backed by Stripe, focused on payment settlement. The inclusion of Tempo connects directly to the expanded partnership with Bridge — Stripe's subsidiary — announced in March 2026, which covers a global program of stablecoin-backed cards.
The point that matters, reading the five choices together: Visa is not betting on a specific network. It is betting on being the agnostic settlement layer that connects multiple networks. For partners, this means flexibility to choose the network that best suits their use case — fees, purpose, local regulation, custodian integration — without that choice blocking access to Visa settlement.
This positioning — common settlement layer over fragmented crypto infrastructure — is exactly what SWIFT traditionally offered over the correspondent banking system. The difference is that Visa is building this layer three decades earlier in the adoption cycle of the new infrastructure, and in different architecture: SWIFT is a de facto monopoly on messaging; Visa is positioning itself as one of several possible settlement layers, competing directly with SWIFT itself, which announced in 2025 it would enter the same terrain in 2026.
The regulatory context that unlocked the leap
It is difficult to understand the leap from $1 billion run rate in 2024 to $7 billion in 2026 without situating the regulatory environment. What has changed in the last twelve months has three pillars:
The GENIUS Act was enacted in July 2025, creating the first federal legal framework in the US specific to payment stablecoins. The legislation, which we covered on April 22 during the discussion on deadline extensions, imposes 100% backing in low-risk assets, rigorous AML programs, and monthly disclosure of reserve composition. While the sector viewed these requirements as a cost, they had a predictable secondary effect: they made regulated stablecoins comfortable for institutional partners who previously hesitated to adopt them due to legal uncertainty. Visa, like almost any traditional financial institution, operates under a simple principle — it does not touch assets whose regulatory classification is ambiguous. With the GENIUS Act, regulated USDC and USDT ceased to be ambiguous. The consequence was immediate: partners began accepting stablecoin settlement as routine.
In parallel, the total stablecoin ecosystem grew to more than $320 billion in circulation — a rise of approximately 150% since early 2024. This growth was not linear; it was driven by institutional adoption on three specific fronts: payment settlement (Visa, Mastercard), cross-border remittance payments (Stripe Bridge, Circle), and corporate treasury (companies such as Strategy, though in Bitcoin, set precedent for treasury in digital assets). Visa's volume leap is part of the category's own expansion — not an isolated move.
And in the third pillar, Mastercard aggressively scaled its own program. Stablecoin-backed payments via integration with MetaMask and similar wallets were announced throughout 2025-2026 as an available product in more countries. The competitive pressure between Visa and Mastercard in this vertical is today one of the main engines of institutional innovation — a dynamic that accelerates rather than settles.
What this means for Brazil
The Visa announcement does not mention Brazil by name. But the impact on the Brazilian ecosystem is direct and immediate in three dimensions:
First: card settlement in Brazil. Visa already offers USDC settlement tied to card programs in more than 50 countries; Brazil is on that list by extension of global operations, though local volumes are still small compared to American ones. With expansion to Base, Polygon, Arc, and Tempo, Brazilian card partners — issuers and acquirers — gain more network options to integrate stablecoin settlement without needing to open an exclusive account on a single blockchain. For Brazilian fintech card providers (Nubank, Inter, and new crypto-card entrants), this reduces operational friction significantly.
Second: cross-border BR-USA. The remittance and payment corridor between Brazil and the United States is, after BR-Argentina, the country's second largest cross-border flow. The integration between PIX and USDC by the Central Bank, which we covered on April 22, creates the bridge at the Brazilian end; Visa's expansion to Base and Polygon adds settlement infrastructure at the American end. The result, once executed, is a BRL-USDC-USD operation in real time, 24/7, without dependence on correspondent banking. For the Brazilian sending or receiving value from the US — diaspora, freelancer payments, family remittances — this parallel architecture is already operationalizing everyday use cases, even before it becomes mainstream option in retail apps.
Third: the tension with Drex and B3's stablecoin. On April 29, ON3X published analysis on how B3, filling the vacuum of paused Drex, prepares the launch of a real-backed stablecoin for institutional settlement in the Brazilian capital market. The move is coherent at domestic scale. But Visa's announcement, on the same day, shows the frontier that B3 does not cover: cross-border settlement of retail payments between multiple jurisdictions, in international functional currency (USD/USDC). In other words: while the Brazilian ecosystem debates which entity will operate the national stablecoin, Visa is building the infrastructure that makes national stablecoin less relevant for the cross-border use case, leaving for domestic stablecoin only the niche of internal settlement. This is not a failure of Brazilian planning; it is the natural result of operating in a global market where the reference asset is the dollar, and where whoever builds infrastructure over the dollar captures the cross-border value.
The operational risk that is not in the announcement
There is a point that deserves to be said clearly, because it does not appear in any institutional announcement. Operating stablecoin settlement over nine parallel blockchains multiplies Visa's operational risk surface compared to the traditional banking model. Each network has its own technical characteristics: finality times, transaction costs, consensus mechanisms, reorg risks in extreme cases. Visa needs, internally, to maintain operations teams capable of monitoring nine networks simultaneously, identifying incidents in real time, and moving liquidity between networks when one fails.
The KelpDAO case of April 19, which we analyzed on April 28 as part of the cross-chain cluster, was the most recent reminder that cross-chain infrastructure — though different in nature from what Visa operates — can be breached when the verifier configuration is not robust. Visa's operation does not use LayerZero (the company operates settlement directly on each network, not cross-chain between them), but it depends, on each network, on the security of the validators and nodes that process USDC transactions. For Polygon and Base, networks with diversified validators, the risk is manageable. For Canton Network — a permissioned network with a restricted set of validators — and for Arc and Tempo (very new networks, with limited operational history), the validation burden is more heavily loaded.
It is not a criticism of Visa's design. It is a realistic observation: a settlement infrastructure operating $7 billion annualized over nine networks needs operational governance substantially different from one operating the same volume over a single SWIFT network. Visa has the institutional capacity for this. But the learning curve is part of the product, not prior to it.
The 12 to 18 month scenario
Some testable predictions from this announcement, considering the observed trajectory:
- Run rate of $15-20 billion annualized by second quarter 2027. Maintaining the 50% quarter-over-quarter growth rate — an optimistic but not absurd premise given the deregulated environment — Visa crosses double-digit billions in annualized volume within twelve months. This becomes comparable to specific SWIFT corridors in value, though still small in aggregate volume.
- Mastercard responds with equivalent expansion by third quarter 2026. Direct competitive pressure will make it unlikely that Mastercard maintains a similar program restricted to integrations with specific wallets. Expect an analogous announcement from Mastercard with addition of multiple blockchains in the next 90-180 days.
- Brazilian retail banks enter with their own stablecoin settlement programs for corporate cards. The combination of PIX + USDC by the Central Bank and Visa running settlement on Polygon/Base reduces friction for Itaú, Bradesco, Santander, and Banco do Brasil to offer corporate cards with hybrid settlement to clients operating cross-border. The custody and regulatory side is ready; the product is missing.
- Drex 2.0 reopens with reduced scope. The Central Bank, seeing the parallel infrastructure operationalized by Visa, B3, and Central Bank-USDC, will likely recalibrate Drex's relaunch in 2026 to a narrower scope — institutional interbank wholesale, not cross-border retail. The original broad scope ceases to make economic sense when retail already has a functional alternative.
The ON3X perspective
Three takeaways to close:
1. The "crypto network war" is being decided in institutional settlement, not in token retail. For years, the metric that dominated crypto narrative was TVL in DeFi, volume in DEX, token capitalization. This metric remains important, but what Visa's announcement demonstrates is that the truly decisive metric for digital monetary infrastructure is institutional settlement volume. Solana, Base, Polygon, Stellar — each of these networks is being chosen or discarded not by number of DeFi users, but by capacity to absorb institutional flows. The adoption ranking that matters for 2027 is not the ranking that CoinMarketCap shows today; it is the internal spreadsheet of institutional allocators on which network to use for settlement.
2. Institutional consolidation of crypto infrastructure in the US is close to closing — and Brazil is reacting, not leading. Visa covering nine blockchains, Strategy surpassing BlackRock as the largest corporate Bitcoin holder, IBIT holding 49-62% of the spot ETF market, GENIUS Act enacted, Mastercard scaling, Morgan Stanley's MSBT entering: what is being drawn is an integrated institutional ecosystem, in which American digital monetary infrastructure operates with few delays relative to the traditional banking system, with clear regulatory supervision. Brazil has important pieces — PIX-USDC, B3 stablecoin, Resolution 519 — but they are being built in response to American infrastructure, not in parallel with it. This is not necessarily a problem; but it deserves honest acknowledgment: the design of Brazilian digital monetary architecture for 2026-2030 will be strongly conditioned by American architecture, not the reverse.
3. The "stablecoinization" of the payments system is no longer speculation — it is a timeline. For years, the central argument against the practical relevance of stablecoins was that they operated in a crypto-native niche, without integration with mainstream financial infrastructure. Visa's announcement closes the discussion. Stablecoins are, in 2026, part of institutional payment infrastructure under US federal regulation, with volumes at the scale of billions and integration with banks, processors, and acquirers. For the Brazilian operator — exchange, fintech, brokerage, bank — this means decisions made today about which network to integrate, which stablecoin to custody, which settlement partner to adopt, will have disproportionate weight in 2027-2028. The institutional stablecoin opportunity cycle is not opening now; it is closing, and whoever enters from mid-2027 onward already enters a consolidated product, not open terrain.
In 2024, Visa's program ran about $1 billion annualized in stablecoin settlement over two networks. In 2026, it is $7 billion over nine networks. In 2028, on the observed trajectory, it will be tens of billions over a constellation of networks not yet announced. What the Brazilian needs to decide now is not whether stablecoins make sense — but where they want to be when stablecoins become the norm. And that decision has a short window.