Coinbase and Marqeta Just Rewired the Card Swipe: The Quiet War for the Money Layer Underneath

(SeaPRwire) –   By: Oliver Hawthorne

The real anxiety in payments right now is not about cards. It is about who controls the money sitting behind them. Every fintech conference I have attended this year circled the same uncomfortable question. Stablecoins hold hundreds of billions in value, yet spending that value still requires crawling back through the legacy banking stack. That friction is the industry’s open wound. Coinbase and Marqeta announced on October 16, 2026, that they intend to close it. Their expanded partnership will power stablecoin-backed cards for businesses, and the structure of the deal tells us far more than the press release admits. Coinbase is not trying to issue another consumer crypto card. It is positioning itself as the reserve and settlement layer for other companies’ card programs. That is a wholesale ambition, not a retail one.

The facts deserve careful reading. This is a six-year-old relationship. Marqeta was named as the processor for Coinbase’s U.S. debit card back in October 2020, a card that let customers spend crypto including USDC and earn crypto rewards. The new arrangement widens that lane dramatically. Under the expanded deal, Coinbase holds the stablecoins and handles conversions between digital and traditional currencies. Marqeta manages card issuing, payment processing, and the bank and network relationships. Base, Coinbase’s own blockchain, supplies the onchain settlement, which the companies describe as fast, secure, and low cost. The target customers are Marqeta’s enterprise clients, both crypto-native firms and traditional companies. Businesses can fund card programs around the clock, and cardholders can spend from a stablecoin balance at millions of merchants that accept cards. The scale argument carries weight. Marqeta processed nearly $400 billion in annual payments volume in 2025 and is certified in more than 40 countries. Alec Lovett, Head of Infrastructure Products at Coinbase, framed it as pairing Coinbase’s stablecoin payment rails with Marqeta’s issuing muscle to enable real-time global transactions. Anthony Peculic, Chief Strategy Officer at Marqeta, called it a natural next step. What the release pointedly omitted matters just as much. No fees. No rollout date. No named stablecoins. Three of the four questions any treasury team would ask before signing remain unanswered.

The commercial loop here is what deserves scrutiny. For decades, the card business extracted value at the interchange layer, with settlement crawling through batch processes on banking hours. This deal attacks the settlement leg directly. A business funding its card program at 2 a.m. on a Sunday is not a gimmick. It is a rejection of the correspondent banking clock. Coinbase gets custody flows, conversion revenue, and deeper relevance for Base as financial plumbing. Marqeta gets to offer enterprise clients a funding model its bank-dependent rivals cannot easily copy. The end-game I see is consolidation of the stablecoin payment stack into a handful of full-service providers, custody through settlement through issuance, with everyone else renting access. Visa and Mastercard remain the acceptance network, so this is not a bypass. It is a land grab for the layer just beneath the swipe. My practical advice to any payments executive reading this: before the fee schedule and supported-asset list arrive, map exactly which part of your current funding cycle fails outside banking hours, because that is precisely the line item Coinbase and Marqeta are coming to replace.

Author bio: Oliver Hawthorne is a Principal Correspondent permanently stationed at an international technology review, covering payments infrastructure, digital assets, and the companies rebuilding the financial stack.