
How it works
Lead Bank issues the card, and Bridge is the program manager that moves funds onchain. Stripe provides Issuing, identity verification, and managed support, while Privy provides the embedded wallet, all in one integration. Cards spend just-in-time from the account’s stablecoin balance; funds are never preloaded onto the card. Each purchase pulls stablecoins from the account onchain at the moment of authorization. Wallet owners must submit an onchain approval so Bridge’s smart contract can pull funds at authorization time.Spend from vault balances
Balances backing a card don’t have to sit idle. Users can deposit their stablecoins in Earn vaults, where they accrue yield, and withdraw just-in-time to fund card spend. A single balance both grows and stays spendable, so users earn on their stablecoins right up until they use the card.Choose your integration
Privy supports two paths for launching a card program. Prebuilt components offer a managed path designed for faster time to market, while direct API integrations give your team more control over the customer experience, operations, and program economics. The right approach depends on how much of the program your team wants to own today and as you scale.Prebuilt components
Embed bank-approved card UI with the React SDK.
API integration
Issue cards server-side with Stripe Issuing and Bridge.

