Definition
Payment Passkeys are Mastercard’s authentication method for verifying that a payment transaction has been actioned by the account holder. In agentic commerce flows, they serve as the consumer confirmation layer within mastercard-agent-pay.
Key Points
- Used in Denmark’s first AI-agent payment demo (Sep 21, 2026) alongside mastercard-agent-pay and payos
- Part of Mastercard’s broader tokenization and passkey infrastructure for mobile contactless and Secure Card on File
- Distinct from web passkeys — purpose-built for payment authorization in agent-initiated checkout