Verify Visa's Trusted Agent Protocol (TAP) signatures against Visa's trust directory so a merchant's bot-mitigation layer lets recognized shopping agents through instead of blocking them

Steps

1. Review the TAP architecture: the agent operator holds an Ed25519 signing key, Visa operates a trust directory anchoring operator identifiers to public keys, and the merchant verifies signatures on inbound requests
2. Register or confirm your acquirer/processor is a TAP launch partner (e.g. via Adyen, Checkout.com, Stripe, Shopify, or another supported PSP) so TAP claims reach your integration
3. Verify incoming RFC 9421 HTTP Message Signatures against the Visa-operated public-key directory rather than trusting a self-asserted identity
4. Parse the three TAP data elements -- agent intent, consumer recognition, and optional payment information -- and use agent intent to distinguish 'browsing' from 'purchase intent' traffic
5. Route requests with a valid TAP signature around aggressive bot-challenge pages (CAPTCHA, JS challenge) while still applying fraud scoring at checkout
6. Fall back to standard bot mitigation for traffic that fails or omits TAP verification