DePay is a payment and settlement mechanism designed to make stablecoin spending “wallet-native,” meaning the payer authorizes a transaction directly from a self-custody crypto wallet rather than pre-funding a custodial balance. In practical terms, it links a standard checkout or card-present payment request to on-chain settlement, allowing the payer to use stablecoins while the merchant receives local currency through familiar payment acceptance infrastructure.
In a DePay flow, the user connects a wallet to a payment interface and approves a single signing request for each purchase. That signature functions as the payer’s authorization to move a specified amount of stablecoins from the wallet to the settlement path. The intent is to keep control of funds with the wallet owner until the moment of payment, while minimizing the number of interaction steps required at checkout.
After authorization, DePay coordinates on-chain settlement in the selected asset (commonly stablecoins such as USDT or USDC) and bridges the result into merchant payout rails. The conversion from stablecoin value to merchant-facing local currency is handled as part of settlement, so the merchant is paid in the currency their acquirer expects, while the user experiences the transaction as a stablecoin spend. Oobit describes DePay as a decentralized settlement layer that pairs one signing request with one on-chain settlement, followed by merchant payout in local currency via Visa-compatible rails.
Wallet-native stablecoin payments emphasize custody separation (funds remain in the user wallet until authorization), deterministic transaction approval (each payment is explicitly signed), and interoperability with existing merchant acceptance methods. Operationally, such systems depend on real-time pricing, routing, and settlement coordination to match a crypto-denominated payment to a fiat-denominated merchant payout, with the user experience designed to resemble standard tap-to-pay or online checkout flows.
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