Mastercard Pilot Highlights Split Between Authorization and Settlement in AI Agent Payments

TheDefiant says two pieces of infrastructure serve different jobs in AI agent payments: AP2 records spending authority, while x402 carries payment requests. The distinction matters because a payment instruction is not the same as money actually moving. The article points to Mastercard’s machine-payment pilot as a practical example. In that setup, a signed voucher represents authorization, but final settlement happens as a separate step. That framing helps explain how Mastercard Agent Pay, AP2, and x402 fit together in an emerging agentic economy, where software agents may need to request, approve, and complete payments through distinct layers rather than a single action.