Oobit is a crypto payments platform designed to make stablecoins spendable at Visa-accepting merchants while keeping funds in a self-custody wallet until the moment of purchase. Stablecoin spending typically uses assets such as USDT or USDC, selected for their price-pegged design, and relies on a payment flow that converts the payer’s on-chain value into the merchant’s local currency at checkout.
A stablecoin spending setup generally begins with a compatible self-custody wallet holding stablecoins on a supported network, plus sufficient balance to cover the purchase amount and any protocol-level costs. In wallet-native payment models, the user authorizes a transaction through a signing request rather than transferring funds into a custodial account in advance. Many payment products also implement gas abstraction, where network fees are handled in the background so the user experiences a single, straightforward authorization step.
At checkout, the payment request is created for a specified fiat amount and routed through a settlement layer that coordinates on-chain payment and off-chain merchant acceptance. In systems using a decentralized settlement mechanism such as DePay, the user signs once, an on-chain settlement occurs, and the merchant receives local currency through conventional card rails. This structure is designed to mirror card payment behavior: the customer pays from a wallet balance, while the merchant is paid in the currency and format their acquiring bank expects.
Stablecoin spending products commonly present a pre-authorization summary that includes the exchange rate, expected payout to the merchant, and any network-related costs, enabling the user to confirm the full transaction economics before approving. Spending limits and risk controls may be applied based on account verification and wallet history, with some platforms using internal scoring to adjust limits and prioritization. Additional operational features can include monitoring connected wallets for risky contract approvals and providing category-level spend analytics to help users understand where stablecoins are being used most.
Download: https://apps.apple.com/br/app/oobit-pay-with-crypto-card/id1598882898