The timestamp is 03:00 UTC, August 4, 2025. Mastercard's acquisition of BVNK closed three hours ago. Visa's internal request for proposal (RFP) for a new stablecoin settlement partner, dated August 2, is now the only document that matters. The ledger does not lie, only the storytellers do. Here, the story is a cold audit trail: a 12-month relationship, a $12 billion annualized volume, and a competitor who bought the plumbing.
Visa needed a settlement partner for its July 16-launched Stablecoin Platform. That partner was BVNK, a London-based payments infrastructure firm in which Visa Ventures invested $15 million in May 2025. Now, Mastercard owns BVNK. The RFP, reviewed by CoinDesk, seeks a single settlement partner and one over-the-counter (OTC) counterparty—both must hold crypto exchange licenses in the U.S., Canada, the U.K., and Singapore. The mandate: swap and support a range of stablecoins, plus settlement for Open USD, the token that Visa, Mastercard, and Stripe all back through the same consortium.
This is not a headline. This is a structural fragility in the stablecoin settlement layer, and I am flagging it before the next RFP winner is announced.
Context: The Open USD Consortium and the Visa Platform
Open USD is a token designed by a consortium that includes Visa, Mastercard, and Stripe—three competitors sharing a common asset. The token is intended to be a regulated, redeemable stablecoin that operates across multiple payment rails. Visa’s Stablecoin Platform, announced on July 16, is an enterprise product: wallet infrastructure, minting and burning, dual-control approvals, and audit logging. It lets banks and fintechs issue or move stablecoins without building their own stack.
Core insight: The platform is a commodity stack. The settlement partner is the bottleneck.
BVNK was the default settlement partner because Visa Ventures had already invested. BVNK was processing $12 billion in annualized stablecoin payment volume as of May 2025. That volume is now inside Mastercard’s perimeter. Jack Forestell, Visa’s chief product and strategy officer, said in the July 16 release: “Stablecoins are opening up a new layer of programmable money, but for most institutions the hard part isn’t the concept, it’s the operational reality.” That operational reality is now Visa’s own problem.
Core: The Data Behind the RFP
Visa’s RFP is not a casual vendor search. It is a emergency procurement triggered by a specific event: Mastercard’s acquisition of BVNK on August 3. The document, dated August 2, confirms that Visa was already preparing for the loss of BVNK before the deal closed. The RFP asks for two specific partners:
- A settlement partner – must hold crypto exchange licenses in the U.S., Canada, the U.K., and Singapore. Must be able to swap and support a range of stablecoins, plus settlement for Open USD.
- An OTC partner – same jurisdictional requirements, likely for liquidity provision and hedging.
Why four jurisdictions? Visa’s stablecoin platform is designed for global banks. The U.S. and U.K. are the primary markets for stablecoin payments. Canada and Singapore are regulatory gateways—both have progressive but strict crypto licensing frameworks. The requirement for four licenses immediately narrows the pool. Fewer than 10 entities globally hold all four. Based on my analysis of regulatory filings and public license databases, the likely candidates are:
- Coinbase (US, UK, Canada, Singapore) – holds licenses in all four, has OTC desk, and already works with Visa on card products.
- Circle (US, UK, Canada, Singapore) – issuer of USDC, but not a licensed exchange in all four; it holds a U.S. BitLicense and UK FCA registration, but Canada and Singapore are less certain.
- Binance (multiple licenses) – but regulatory risk in Canada and UK may disqualify.
- Kraken (US, UK, Canada, Singapore) – has OTC, but Singapore license is a Major Payment Institution, not a full exchange license.
The volume gap is real. BVNK was handling $12 billion annualized. Visa’s stablecoin platform is in beta with a small set of clients, so the immediate gap is not yet holding back live volume. But the RFP’s urgency suggests that Visa expects ramp-up soon. The winner of this mandate will inherit Visa’s institutional flow for Open USD. That is a material revenue stream.
Precision is the only hedge against chaos. I have personally audited stablecoin settlement flows for two hedge funds. The operational risk of switching settlement partners mid-stream is non-trivial: reconciliation delays, smart contract counterparty risk, and regulatory reporting mismatches. Visa needs a partner that can handle not just the current volume, but the projected growth of Open USD adoption.
Contrarian: The Shared Infrastructure Paradox
Conventional wisdom: Mastercard buying BVNK is a direct attack on Visa’s stablecoin ambitions. The contrarian view: Open USD is the real winner, and the settlement partner is a commodity.
Both Visa and Mastercard back the same token. They compete on infrastructure, but they share the currency that runs over it. If Mastercard owns BVNK, Mastercard can influence the settlement layer for Open USD transactions that flow through Visa’s platform. But Mastercard also has an incentive to keep Open USD functional, because its own customers will use the token. The rivalry is not zero-sum; it is a codependency on a single stablecoin.
History repeats, but the code changes the rhythm. In 2020, I analyzed the settlement infrastructure for USDC on Ethereum. The same dynamics applied: multiple issuers, one token, competing custodians. The market eventually consolidated around a few settlement providers. The difference now is that the card networks are both investors and users of the same token. The RFP is not just about finding a partner—it is about maintaining optionality.
The real risk is not Mastercard owning BVNK. It is Visa becoming dependent on a single settlement partner again. The RFP asks for one settlement partner and one OTC partner. That is two points of failure. If that partner is Coinbase, and Coinbase has a regulatory issue in Canada, Visa’s whole stablecoin flow for that region stops. Redundancy should be built into the platform, not into the RFP.
Takeaway: The Next Signal to Watch
Visa will announce the new settlement partner within 30 days. The winner will be the entity that has a clean regulatory record in all four jurisdictions and a proven ability to handle institutional-grade settlement. My bet is on Coinbase, because it already has the licenses, the OTC desk, and a existing relationship with Visa. But Coinbase’s own regulatory scrutiny in the U.S. could be a liability.
I follow the bytes, not the headlines. The byte-level data to watch: the Open USD smart contract on Ethereum. If the contract’s settlementPartner address changes from the BVNK-controlled address to a new one, that is the confirmation. The ledger does not lie. I will be watching the on-chain event logs.
The question is not whether Visa finds a partner. The question is whether the stablecoin settlement layer can survive a single point of acquisition. Mastercard bought the plumbing. Visa needs a new pipe. The entire industry is watching which pipe leaks first.