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WEBTHREEPEDIA RESEARCH

[COMPARATIVE ANALYSIS] Visa, Mastercard Wire Stablecoins Into Card Rails

Zephyra|May 30, 2026|BPF
EXECUTIVE SUMMARY

Visa and Mastercard are building parallel stablecoin settlement infrastructure at a pace that would have been unthinkable 18 months ago. Visa's stablecoin settlement pilot has reached a $7 billion annualized run rate across nine blockchains, up 50% quarter-over-quarter. Mastercard's $1.8 billion ...

"The question is not whether stablecoin rails are better than fiat rails, but how both can be combined in a single offering and distributed at scale." — Jorn Lambert, Chief Product Officer, Mastercard

Executive Summary

Visa and Mastercard are building parallel stablecoin settlement infrastructure at a pace that would have been unthinkable 18 months ago. Visa's stablecoin settlement pilot has reached a $7 billion annualized run rate across nine blockchains, up 50% quarter-over-quarter. Mastercard's $1.8 billion acquisition of BVNK — the largest stablecoin infrastructure deal on record — closed on March 17, 2026, followed 10 weeks later by the company securing a New York BitLicense on May 27, 2026.

Crypto card payment volumes have surged 230% year-over-year to $7.8 billion cumulative as of May 2026, with monthly volumes more than doubling from $271 million in May 2025 to $656 million in May 2026. Visa commands over 90% of on-chain card volume. The two networks are no longer experimenting with blockchain — they are wiring stablecoins directly into the pipes that move $20 trillion annually.

Table of Contents

  1. The Numbers: Card Volume and Settlement Growth
  2. Visa's Nine-Chain Settlement Architecture
  3. Mastercard's Acquisition-Led Strategy
  4. How Stablecoin Cards Actually Work
  5. Regulatory Scaffolding: GENIUS Act and BitLicense
  6. Competitive Dynamics: Cooperation or Cannibalization
  7. Key Takeaways
  8. Conclusion

The Numbers: Card Volume and Settlement Growth

Crypto card payment volumes hit $7.8 billion cumulative through May 29, 2026, according to on-chain analytics firm Paymentscan. Monthly volumes rose from $271 million in May 2025 to $656 million in May 2026, representing a 142% year-over-year increase. On an annualized basis, the market now exceeds $18 billion — rivaling peer-to-peer stablecoin transfers at $19 billion, which grew just 5% over the same period.

The composition of that volume is heavily concentrated. Tether (USDT) accounts for 72% of total crypto card payment volume. USDC holds approximately 18%. The remaining 10% is distributed across smaller stablecoins and native crypto assets.

Network-level market share is equally concentrated. Visa processes over 90% of all on-chain card volume, a position it built through early infrastructure partnerships with Bridge (acquired by Stripe for $1.1 billion in 2024), Worldpay, and Nuvei. Mastercard holds the remainder but is moving aggressively to close the gap.

For context, global stablecoin transaction value totaled $33 trillion in 2025, a 72% increase from 2024, according to Bloomberg. Bloomberg Intelligence projects stablecoin payment flows will hit $56 trillion by 2030. The card-linked segment — while small relative to total stablecoin volume — is the fastest-growing channel for consumer-facing stablecoin utility.

Visa's Nine-Chain Settlement Architecture

Visa announced on April 29, 2026, that its stablecoin settlement pilot had expanded to nine blockchains: Ethereum, Solana, Avalanche, Stellar, Base, Polygon, Canton Network, Arc, and Tempo. The addition of five networks in a single expansion marked the largest multi-chain deployment by a traditional payment network.

Settlement volumes reached a $7 billion annualized run rate, up from $4.5 billion in January 2026. Cuy Sheffield, Visa's head of crypto, stated: "Visa is committed to meeting businesses where they operate, and increasingly, that's onchain."

The program supports more than 130 stablecoin-linked card programs across over 50 countries, with live tests and regional rollouts in Latin America, Europe, Asia-Pacific, and CEEMEA (Central and Eastern Europe, Middle East, and Africa). The settlement mechanism allows issuers and acquirers to settle obligations in USDC rather than through traditional correspondent banking rails, eliminating weekend and holiday delays.

Separately, Visa's partnership with Bridge — announced on March 3, 2026 — plans to bring stablecoin-linked cards to over 100 countries by year-end, up from 18 countries at announcement. The cards allow users to spend directly from stablecoin balances held in self-custody wallets such as MetaMask and Phantom, with transactions processed across Visa's network of 175 million merchant locations. Bridge's infrastructure enables custom stablecoins — programmatically created by businesses rather than issued by third parties — to function seamlessly within card programs.

Mastercard's Acquisition-Led Strategy

Mastercard's approach is structurally different from Visa's partnership model. The company is buying its way into stablecoin infrastructure through a series of acquisitions and licensing moves executed over a 10-week window in early 2026.

BVNK Acquisition ($1.8 billion, announced March 17, 2026): The deal is structured as $1.5 billion base price with up to $300 million in earnout payments contingent on performance milestones. BVNK, founded in London in 2021, operates a payments infrastructure platform connecting fiat and stablecoin rails across 130+ countries. At announcement, BVNK disclosed $30 billion in annualized payment volume, up from $20 billion in October 2025. The acquisition eclipses Stripe's $1.1 billion purchase of Bridge as the largest stablecoin infrastructure deal. BVNK's team will join Mastercard upon close, expected late 2026.

As part of its consolidation strategy, Mastercard walked away from a planned investment in rival crypto infrastructure firm Zerohash, according to a May 25, 2026, report from TechTimes.

BitLicense (May 27, 2026): Mastercard Transaction Services (U.S.) LLC secured a virtual currency license from the New York Department of Financial Services, joining approximately two dozen firms that hold the license since its 2015 inception. The license clears the company to conduct digital asset activities — including stablecoin transfers, wallet linking, and compliance tool operations — under one of the strictest crypto regulatory frameworks in the United States.

Partnership Stack: Mastercard launched its Crypto Partner Program on March 11, 2026, assembling 85+ crypto-native firms for integration across remittances, B2B flows, payouts, and settlement. The company partnered with SoFi Technologies to allow SoFiUSD stablecoin use for settlement on its network, and with Thunes for 24/7 stablecoin wallet payouts integrated into Mastercard's money movement network.

How Stablecoin Cards Actually Work

The infrastructure behind a stablecoin-linked card transaction involves multiple intermediary layers:

  1. User holds stablecoins in a wallet or app balance (e.g., MetaMask, Phantom, OKX).
  2. Card credential issued through a BIN sponsor bank — required because crypto platforms lack banking charters. The sponsor bank acts as the regulatory issuer of record.
  3. Transaction authorized through standard card rails. The backend debits the user's stablecoin balance.
  4. Conversion (optional): Stablecoins may be converted to fiat at the point of sale, or the merchant may receive stablecoin settlement directly if an on-chain settlement path exists.
  5. Settlement: The acquirer settles with the card network. Under new stablecoin settlement programs, this step can occur on-chain in USDC rather than through traditional banking intermediaries.

The economic structure remains familiar: interchange fees flow to the issuer, network fees to Visa or Mastercard, and processing fees to the acquirer. The stablecoin layer substitutes the funding source (stablecoin balance instead of bank account) and the settlement medium (on-chain transfer instead of ACH or wire).

Nium launched a stablecoin card issuance platform enabling businesses holding stablecoins to issue spending cards on both Visa and Mastercard through a single API, converting stablecoin balances to fiat at the point of sale. The platform operates across 40+ countries using Nium's regulatory licenses.

Regulatory Scaffolding: GENIUS Act and BitLicense

Two regulatory developments underpin the card networks' stablecoin push.

GENIUS Act (signed July 2025): The first comprehensive U.S. regulatory framework for dollar-pegged payment stablecoins. According to Paymentscan data, crypto card payment volumes accelerated following the act's passage, suggesting that regulatory clarity functioned as a demand catalyst. The act establishes issuer requirements for reserves, audits, and redemption rights — conditions that make stablecoins compatible with traditional payment network risk frameworks.

New York BitLicense: The BitLicense framework, introduced in 2015, imposes requirements covering capital reserves, cybersecurity protocols, consumer protection, and ongoing NYDFS compliance oversight. Galaxy obtained a BitLicense earlier in May 2026; Strike received approval in March 2026. Mastercard's approval on May 27 made it the first major card network to hold the license. The high compliance cost has historically limited applicants to well-capitalized firms — approximately two dozen hold the license after 11 years.

Bridge, the Stripe subsidiary that powers much of Visa's stablecoin card infrastructure, obtained a conditional national trust bank charter, permitting stablecoin product offerings under federal oversight.

Competitive Dynamics: Cooperation or Cannibalization

The strategic question facing both networks is whether stablecoins will expand their addressable market or erode their existing fee structures. Billionaire investor Stanley Druckenmiller stated in April 2026 that he believes global payments will "largely run on stablecoins within the next 10 to 15 years," calling them "efficient, quicker, and cheaper" and "incredibly useful in terms of productivity."

If Druckenmiller's thesis holds, the card networks face a substitution risk: stablecoins can theoretically settle peer-to-peer without intermediaries, eliminating interchange and network fees entirely. Both companies appear to be pursuing a co-option strategy — embedding stablecoins within their existing rails rather than competing against them.

Mastercard's Q4 FY2025 gross dollar volume was approximately $2.8 trillion, with cross-border volume growth of 14% and switched transactions growth of 10%. The company's stablecoin settlement programs target the cross-border segment specifically, where average remittance costs remain 6.49% according to the World Bank's Remittance Prices Worldwide benchmark. Reducing that cost through stablecoin settlement — while retaining network fees — represents the core economic proposition.

Visa's approach, by contrast, emphasizes optionality. By supporting nine blockchains and 130+ card programs across 50+ countries, Visa positions itself as a settlement layer agnostic to the underlying chain. The risk is fragmentation; the advantage is coverage.

Both strategies assume that merchants will continue accepting card-network-mediated payments rather than adopting direct stablecoin acceptance. That assumption holds today — the $18 billion annualized crypto card market is a fraction of the $33 trillion in total stablecoin volume — but the gap may narrow as merchant-facing stablecoin infrastructure matures.

Key Takeaways

  • Crypto card volumes surged 230% YoY to $7.8 billion cumulative through May 2026. Monthly volumes reached $656 million, more than doubling from May 2025's $271 million.
  • Visa dominates with 90%+ market share in on-chain card volume, supported by a stablecoin settlement pilot across nine blockchains running at a $7 billion annualized rate.
  • Mastercard deployed $1.8 billion to acquire BVNK, the largest stablecoin infrastructure deal on record, and secured a New York BitLicense within 10 weeks of closing the acquisition.
  • USDT accounts for 72% of card payment volume; USDC holds 18%. The settlement layer, however, runs primarily on USDC due to its regulatory profile and Circle's partnerships with both networks.
  • The GENIUS Act's July 2025 passage correlated with accelerating card volumes, suggesting regulatory clarity functions as a demand driver for stablecoin payment adoption.
  • The core strategic question is whether card networks can embed stablecoins within their fee structures or whether peer-to-peer stablecoin settlement will disintermediate them entirely. Both Visa and Mastercard are betting on the former.

Conclusion

Visa and Mastercard are executing materially different strategies toward the same objective: making stablecoins flow through their existing networks rather than around them. Visa is building a multi-chain settlement layer through partnerships, prioritizing coverage across nine blockchains and 100+ countries. Mastercard is consolidating infrastructure through acquisition, spending $1.8 billion on BVNK and securing regulatory licenses to operate directly.

The $18 billion annualized crypto card market is small relative to either network's total volume. Mastercard alone processes approximately $2.8 trillion per quarter. But the growth trajectory — 230% year-over-year — and the regulatory tailwind from the GENIUS Act suggest that stablecoin-funded cards are transitioning from a crypto-native niche to a payment channel that traditional financial infrastructure must accommodate.

The economic outcome depends on whether the card networks can retain their intermediary position. If stablecoin settlement replaces correspondent banking on the back end while card rails remain the consumer interface, both networks preserve their fee economics while reducing settlement costs. If merchants begin accepting stablecoins directly — bypassing card networks entirely — the intermediary value proposition weakens.

For now, both companies are building as though the first scenario will prevail. The $7.8 billion in cumulative volume, the $7 billion settlement run rate, and the $1.8 billion acquisition price suggest they are pricing that bet with real capital.

Sources & References

  1. CoinDesk: Mastercard Secures New York BitLicense — May 27, 2026 report on Mastercard's BitLicense approval and stablecoin strategy
  2. CoinDesk: Visa Expands Stablecoin Settlement to $7B Run Rate — April 29, 2026 report on Visa's nine-blockchain settlement expansion
  3. Yahoo Finance: Crypto Card Payment Volumes More Than Double — May 29, 2026 Paymentscan data on $7.8B cumulative crypto card volumes
  4. CoinDesk: Mastercard Agrees to Purchase BVNK for $1.8 Billion — March 17, 2026 report on acquisition terms and strategic rationale
  5. Visa Investor Relations: Stablecoin Settlement Expansion — Official Visa announcement on nine-blockchain settlement pilot
  6. CoinDesk: Visa and Bridge Plan Stablecoin Card Expansion to 100+ Countries — March 3, 2026 report on Bridge partnership expansion
  7. Stablecoin Insider: Mastercard Stablecoin Pay in 2026 — Analysis of Mastercard's three-layer stablecoin payment stack
  8. Motley Fool: Druckenmiller Says Stablecoins Will Dominate Payments — April 2026 analysis of stablecoin disruption thesis
  9. TechTimes: Mastercard BVNK Acquisition, Zerohash Dropped — May 25, 2026 report on Mastercard's consolidation strategy
  10. IndexBox: Visa & Mastercard Stablecoin Initiatives 2026 — Overview of both networks' stablecoin partnership landscape