Polygon powers DeCard’s new stablecoin payments across 150 million merchants

DeCard, the card platform formerly known as Diners Club Singapore, is integrating the Polygon network to enable stablecoin deposits and real-world spending at more than 150 million merchants globally.

Through the partnership, holders of USDT and USDC on Polygon can now fund their DeCard and DeCard Luminaries accounts directly, enabling near-instant spending with traditional point-of-sale acceptance.

The move comes as stablecoins, now with nearly $300 billion in circulating supply according to The Block’s data dashboard, continue to expand beyond trading and DeFi.

Analysts at Standard Chartered recently projected that as much as $1 trillion could shift from emerging market bank deposits into stablecoins by 2028, describing them as "USD-based bank accounts" offering global access to dollars without relying on local banking systems.

DeCard said its goal is to make stablecoin payments "as intuitive as any other form of payment," positioning the service as a bridge between crypto balances and everyday use.

Polygon Labs CEO Marc Boiron told The Block that the tie-up brings stablecoins a step closer to mainstream functionality.

"By enabling seamless USDT and USDC deposits and spending across 150 million merchants, we're making stablecoins truly usable in everyday life," he said, calling it part of Polygon's mission to make blockchain “invisible to the user."