Stablecoins as settlement rails

A card payment can look instant at the checkout counter and still take days to fully settle behind the scenes, because banks, acquirers, and networks reconcile balances later and often keep cash parked in multiple countries in advance. Visa is now pitching stablecoins as a way to modernize that back-end settlement layer, not as a replacement for tapping your card at a store. (visa.com) That is why the recent moves are all clustered around treasury and cross-border plumbing. Stripe launched stablecoin financial accounts for businesses in 101 countries, letting them hold a dollar-denominated stablecoin balance and move funds on both crypto rails and traditional rails like Automated Clearing House and Single Euro Payments Area. (stripe.com) Stripe made that push just months after closing its acquisition of Bridge, a stablecoin infrastructure company built to help businesses move digital dollars. At its 2025 Sessions event, Stripe said businesses on its platform processed $1.4 trillion in 2024, which shows why even a narrow treasury feature can matter at large scale. (stripe.com 1) (stripe.com 2) Visa has been testing the same idea from the network side. In September 2023, Visa said it had already moved millions of United States dollar coin, or USDC, over Solana and Ethereum to settle fiat payments for partners including Worldpay and Nuvei. (visa.com) By January 2025, Visa said those pilots had grown into more than $3.5 billion in annualized stablecoin settlement volume and expanded to United States issuers and acquirers settling directly with Visa in USDC. That is a treasury workflow: the merchant still gets paid through normal card systems, but the institutions behind the transaction can square up with each other using tokenized dollars. (visa.com) Mastercard is building from the other side of the same bridge. In April 2025, it said it wanted end-to-end stablecoin capabilities from wallets to checkouts, and it tied that plan to its Multi-Token Network, which is built for real-time payments, redemptions, and tokenized-asset settlement. (mastercard.com 1) (mastercard.com 2) Two months later, Mastercard widened the list of stablecoins it planned to support across its network, including Global Dollar, PayPal USD, United States dollar coin, and Fiserv USD. It also said Mastercard Move and the Multi-Token Network would be used for remittances, business-to-business flows, and settlement, which again points to infrastructure before checkout disruption. (mastercard.com) Circle is trying to become the operator that sits between those institutions. In April 2025, it announced Circle Payments Network to connect banks, payment service providers, digital wallets, and virtual asset firms for real-time cross-border settlement using regulated stablecoins such as USDC and EURC, and in May 2025 it said the network’s mainnet was live. (circle.com 1) (circle.com 2) The problem all of them are chasing is prefunding. In cross-border payments, firms often have to park money in foreign accounts before a payment is even sent, and Visa Direct said in March 2026 that stablecoins can offer always-on liquidity and faster, more flexible settlement for payouts and supplier payments. (visa.com) Polygon Labs is now leaning into that same thesis hard enough to reportedly seek up to $100 million for a dedicated stablecoin payments business. The company has already been repositioning itself as payments infrastructure, saying in February 2026 that its acquisitions of Coinme and Sequence would add licensed on-and-off ramps, wallet tools, and cross-chain orchestration for regulated stablecoin payments in the United States. (finance.yahoo.com) (polygon.technology) So the near-term bet is not that shoppers abandon cards for crypto wallets at the cash register. The bet is that the companies already moving trillions of dollars decide stablecoins are a better pipe for settlement, liquidity management, and cross-border treasury than the patchwork they use now. (stripe.com) (visa.com) (mastercard.com)