Checkout MCP and Cart MCP now support the UCP buyer consent extension ( dev.ucp.shopping.buyer_consent ) starting with UCP 2026-08-25 . Buyers can now make the same privacy and marketing choices in your agent that they’d make in a shop’s own checkout, like opting in to email or SMS. Shops receive those choices with the cart, checkout, and order.
Checkout MCP and Cart MCP now support UCP buyer consent
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October 16, 2026
domain
shopify-admin