How stablecoin cards work
When a cardholder taps to pay, the network requests authorization in local fiat. Behind the scenes, the issuer debits the equivalent in USDC or USDT from the linked balance and settles with the merchant. The user never manages a conversion, they simply spend dollars that happen to live on-chain.
Who benefits most
- Global teams: pay contractors in markets where USD banking is slow or unavailable.
- Treasury-light startups: fund spend from a single stablecoin pool instead of many local accounts.
- High-FX businesses: cut conversion costs by holding and spending dollars directly.
What to watch
Compare the FX and conversion spread, custody model (who holds the keys), supported chains, and whether spend controls are truly programmable. The best programs feel like a modern corporate card, the stablecoin part is invisible.
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