Stripe, Visa, and Mastercard are close to launching a joint stablecoin platform, three people familiar with the plans told CoinDesk on June 3, 2026, at approximately 11:47 a.m. ET. Coinbase is also exploring participation, according to one of the sources. The move would put the three largest global payment networks on a single piece of stablecoin infrastructure — a coordinated bet on blockchain-based settlement that directly challenges the dominance of Tether and Circle.

None of the companies confirmed the plans publicly. Coinbase, Stripe, and Visa declined to comment. Mastercard had not responded to requests for comment by publication time.

What each company has already built

The joint platform would not emerge from a standing start. Each company has spent the past two years laying individual stablecoin foundations.

Stripe acquired stablecoin infrastructure firm Bridge in late 2024 for $1.1 billion, the largest acquisition in the company's history at the time. Bridge provides the back-end rails for issuing and managing stablecoins, giving Stripe a direct pipeline from fiat to on-chain dollars.

Mastercard acquired stablecoin firm BVNK earlier this year and, separately on June 3, announced it plans to expand always-on stablecoin settlement across its network. The new Mastercard framework will initially support regulated stablecoins including Circle's USDC, Paxos-issued PYUSD, USDG and USDP, Ripple's RLUSD, and SoFiUSD, settable on Ethereum, Solana, Polygon, Base, Arbitrum, and XRPL. The announcement described the move as building toward an "always-on model where value can be transferred and settled around the clock."

Visa, in April, expanded its stablecoin settlement pilot to nine blockchains — adding Base, Polygon, Canton Network, Circle's Arc, and Stripe-backed Tempo to existing integrations with Ethereum, Solana, Avalanche, and Stellar. That pilot has reached a $7 billion annualized run rate, up 50% from the prior quarter.

Coinbase's position is complicated

For Coinbase, the calculus is different. The exchange launched a white-label stablecoin service in late 2024 and has long benefited from its revenue-sharing arrangement with Circle, the issuer of USDC. Under the deal — in place since August 2023 — Coinbase keeps 100% of the interest income generated from USDC held on-platform, and splits revenue 50/50 for USDC circulating off-platform and in DeFi.

That agreement comes up for renewal in August 2026. Joining a platform co-built with Stripe and Visa would position Coinbase within the new infrastructure layer at a moment when its existing Circle arrangement is up for renegotiation.

What this means for Tether and Circle

The stablecoin market is large and highly concentrated. Total stablecoin market cap stands at approximately $325 billion, according to CoinGecko. Tether's USDT leads at $115 billion. Circle's USDC is second at $76 billion. Together, the two tokens account for more than 60% of the market.

A joint platform from Stripe, Visa, and Mastercard would enter the market with distribution at a scale neither Tether nor Circle has ever faced from a single competitor. These are not crypto-native challengers building from zero. They are the existing rails of global commerce — collectively processing trillions of dollars in card transactions every year — adding stablecoin infrastructure to those rails.

That matters for Tether's position in particular. USDT dominance has historically rested on its role in crypto trading and cross-border remittances in markets where access to U.S. dollars is restricted. A TradFi-native stablecoin platform optimized for merchant settlement and institutional liquidity would compete for different use cases than the ones Tether currently owns — but the combined footprint of Stripe, Visa, and Mastercard overlaps significantly with USDC's emerging enterprise payment use cases.

The larger shift

What makes this platform notable is not the participation of any single company — Visa and Mastercard have each been building individual stablecoin settlement capabilities for over a year. The news is that they are converging on shared infrastructure.

The stablecoin space has so far developed largely as a collection of parallel experiments: different issuers, different networks, different institutional pilots. A joint platform from the incumbents of global payments suggests that phase is ending. Settlement infrastructure is moving toward consolidation, and the major card networks want to control the layer.

The platform details — its governance structure, which stablecoin issuers it would support, and how it would relate to each company's existing stablecoin efforts — have not been disclosed. Stripe, Visa, and Coinbase declined to comment. Mastercard had not responded by press time.