Know-Your-Agent: AI agent payments and your virtual cards

September 2026 correction

The claimed September 10 Visa/Mastercard/Ant International KYA interoperability announcement, protocol recognition, partners/on-chain records and quantitative market data could not be fully cross-verified on live official sources in this pass. They are withdrawn to uncertain background. Do not treat KYA, Agent Pay or any “agent credential” marketing as available to ordinary virtual-card users.

Current safety rule: never give a chatbot or uncontrolled agent a full card number, CVV, password or one-time code. For automated spending, use revocable, low-limit, purpose-bound payment methods, enable notifications and review authorizations regularly. Product and regional availability are controlled by official Visa, Mastercard, Ant International and merchant pages. Visa official entry: https://corporate.visa.com/。