“Cloudflare-Browserbase axis of evil was not in my bingo card for 2025,” Y Combinator’s Garry Tan wrote on X in August, reacting to Cloudflare’s plan to give AI agents digital passports.
That remark now reflects an industry shift. Cloudflare has partnered with Visa, Mastercard, and American Express to create a system that lets merchants decide which AI agents to trust and which to block.
Visa launched the Trusted Agent Protocol, developed with Cloudflare’s Web Bot Auth, to verify AI agents before they transact online. Approved agents use cryptographic signatures to transmit intent, consumer recognition data, and payment credentials. Merchants validate these details to confirm legitimacy.


