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Field Notes #4: The Week the Card Networks Started Issuing Stablecoins

Stripe, Visa, and Mastercard are backing a joint stablecoin platform. For every founder pitching me payment infrastructure, the enemy just changed shape.

Editorial illustration of card-network payment rails merging with stablecoin infrastructure

A founder called me the morning the CoinDesk story broke on June 3. The report: Stripe, Visa, and Mastercard among the backers of a soon-to-debut stablecoin platform, with Coinbase reportedly circling too. He'd spent eighteen months building stablecoin payment infrastructure, and his first line to me was, "So do we still have a business?" I've been getting some version of that question all week, and I want to write down what I've been telling people, because the reflex answer is wrong.

The thing I noticed

For three years, the pitch I heard from stablecoin-infra founders positioned the card networks as the incumbent to disrupt. Cheaper rails, faster settlement, no 3% toll — the whole story was "we route around Visa." That framing quietly stopped working this quarter. Visa reported roughly $4.6 billion in annualized stablecoin settlement volume on its own network in its Q1 2026 earnings, and in April, Forbes ran a piece with the headline "Stablecoins Just Out-Processed Visa." The networks read the same charts everyone else did.

So they stopped fighting the rail.

They started issuing it themselves.

That's what the Stripe, Visa, and Mastercard consortium actually is. Stripe already bought Bridge for stablecoin orchestration and Privy for embedded wallets, so it has the on-ramp, the treasury layer, and the wallet. Pair that with two card networks' distribution and you don't have a challenger to the payment establishment. You have the payment establishment, wearing the challenger's clothes. And an incumbent that adopts your innovation on its own timeline is a very different animal than one that ignores it.

Why I think it matters

Here's the part I keep coming back to. The bridge that stablecoins were supposed to build, the one between crypto-native settlement and the everyday movement of money, is getting built. Just not by the people who pitched me on building it. When the toll-booth operator decides to pave your shortcut and put its own name on it, "we're cheaper than Visa" stops being a moat. It becomes a feature Visa can copy in a quarter, then subsidize until you can't match it.

So the question I'd been asking founders, whether they could move money more efficiently than the incumbent, turned out to be the wrong one. The incumbent can now move it the new way too. The better question is the one I wrote about in a different context in Bridge Notes #4: once the plumbing is commoditized, where does the value actually settle?

It settles in the layers a consortium can't easily absorb. Compliance and licensing in messy jurisdictions. The last mile of a specific remittance corridor. The merchant relationships nobody wants to rebuild. The FX and treasury logic that has to be right across a dozen currencies at once, in real time, or the whole thing breaks. Those are slow, unglamorous, and expensive to copy, which is exactly why they hold.

That last one is why we at PRIM3 keep funding the boring middleware. When money moves across three stablecoins and four chains, something has to price and verify it as it goes, which is a big part of why we backed RedStone, an oracle network built for that kind of cross-venue truth. The rail getting commoditized doesn't kill that work. It makes it more valuable, because the more players issue stablecoins, the more someone independent has to reconcile them.

What changes for me and the portfolio

I'm rewriting one of my standing questions on founder calls. It used to be "how much cheaper are you than the incumbent rail?" Now it's "what do you own that Stripe can't buy and Visa can't clone by Q4?" If the honest answer is "lower fees," I'm out, because that's a margin the networks will happily erase to keep the account. If the answer is a specific corridor, a licensing footprint, a merchant book, or a compliance surface nobody wants to rebuild, I lean in. Distribution beats efficiency almost every time the incumbent decides to show up, and this was the week it decided.

I told that founder from Tuesday the same thing. His business isn't dead. But the version of it that was going to win on being 40 basis points cheaper is, and the sooner he grieves that version, the sooner he builds the one that survives contact with a Visa press release.

The rail was never the prize. What plugs into it — and who's allowed to — is.


Tomer Warschauer Nuni is Founder & Investment Director at PRIM3 Capital, a Forbes Business Development Council member, and a contributor to Forbes and Cointelegraph. Connect on LinkedIn, X, or Telegram.