Google Upgrades AI Shopping Protocol With Real-Time Catalog Access, Cart Management, and Loyalty Integration

Google upgrades its Universal Commerce Protocol with real-time catalog access, cart management, and loyalty integration, enabling AI shopping agents to browse, save items, and apply member perks across retailers, with Salesforce, Stripe, and Commerce Inc among the first partners set to implement the system.

• Google's Universal Commerce Protocol (UCP) receives major updates, introducing a Cart capability that allows AI shopping agents to save or add multiple items at once, mirroring how real shoppers browse and buy.
• A new Catalog capability now gives agents access to real-time product details such as pricing, inventory, and variants, while Identity Linking ensures shoppers receive loyalty benefits and member perks across UCP-integrated platforms.
• Google is streamlining UCP onboarding through Merchant Center to bring more retailers of all sizes into agentic commerce, with partners including Salesforce, Stripe, and Commerce Inc set to implement UCP on their platforms soon.