Tag: Embedded Checkout
-
UCP’s Layered Architecture Explained: How REST, MCP, A2A, and AP2 Work Together
UCP’s layered architecture separates core transaction primitives from capabilities, extensions, and payment handlers — enabling the protocol to scale across millions of merchants and evolve without breaking existing integrations. This guide explains each layer, how merchant profiles and capability negotiation work, what the checkout state machine does, and how REST, MCP, A2A, and AP2 connect…
-
How UCP Powers Checkout Inside Google AI Mode and Gemini: What Merchants Need to Know
Google has built the first live implementation of UCP to power checkout inside AI Mode in Search and the Gemini app. This guide covers how the Buy button appears, how Business Agent works, what Direct Offers are, and what Merchant Center data merchants need configured — verified entirely from official Google sources.
-
Embedded Checkout & Direct Offers: UCP’s Two Transaction Models Explained
Technical comparison of UCP’s Native Checkout and Embedded Checkout transaction models, plus how Google’s Direct Offers pilot enables exclusive in-conversation promotions within AI Mode.