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Protocol

Pilot means a limited test, or access the company has not opened to everyone. Sardine's Know Your Human (KYH) protocol lets an AI shopping agent pass a shopper's device ID, fingerprint, and IP address to a merchant in a few HTTP headers so a checkout from a cloud browser is less likely to be declined as a bot.

Note on this rowThe Paypers reported this launch on November 6, 2026 and said Sardine is seeking design partners among agent developers and merchants. Neither source names merchants that have adopted KYH. Sardine says the protocol complements existing agentic commerce protocols. An agent can bind a device with Sardine's SDK or a merchant Method URL. A texted verification link expires five minutes after it is created and can be opened up to three times. Sardine's page calls email, phone, and KYC possible extensions. The Paypers lists email and phone among the identifiers and calls KYC an extended case (https://thepaypers.com/fraud-and-fincrime/news/sardine-launches-know-your-human-protocol-for-agentic-commerce).

Where does this come from?

As of November 6, 2026. Source: Sardine.

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