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AI shopping gets simpler with Universal Commerce Protocol updates
We built the Universal Commerce Protocol (UCP) with the industry as an open standard to help make online shopping easier for everyone. Today, we're sharing updates on new UCP capabilities, and, separately, how we are simplifying the UCP onboarding experience on Google surfaces. Since launch, we've worked with community contributors to add new optional capabilities to the protocol: As always, UCP adopters can customize the experience they provide by selecting which capabilities to support. At Google, we'll continue to bring relevant UCP capabilities to shopping experiences in AI Mode in Search, the Gemini app and beyond. Additionally, we are actively working to onboard more retailers of all sizes to agentic experiences on Google with a simplified UCP onboarding process in Google's Merchant Center, rolling out over the coming months. Partners like Commerce Inc, Salesforce and Stripe will implement UCP on their platforms in the near future, with others coming soon -- making online shopping and selling even better for more people and businesses.
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Google Debuts New Ways to Let AI Agents Shop Like Humans | PYMNTS.com
Since then, the tech giant said on its blog Thursday (March 19), the company has worked with "community contributors" on new options for the UCP. Among these is a new "Cart" option that lets agents save or add multiple items to a shopping cart at the same time from a single store, "just as a shopper typically would." In addition, UCP adopters will be able to access a new Catalog capability that allows AI agents -- when necessary -- to retrieve select real-time product details from a merchant catalog such as variants, inventory and pricing. And building on existing standards, UCP will also support Identity Linking, Google added. "That allows shoppers on UCP-integrated platforms to receive the same loyalty or member benefits they would on a retailer's site when they're logged in -- like pricing or free shipping -- making shopping more connected across the web," the company said. Google announced UPC in January after developing the protocol in partnership with Walmart, Target, Shopify, Etsy and Wayfair. As PYMNTS wrote, the protocol moves away from relying on one-off integrations between agents and merchants and comes up with a standard way for AI agents to handle product discovery, checkout and post-purchase support. Merchants can expose inventory, pricing and fulfillment logic via the protocol, thus letting agents carry out purchases without redirecting users to external sites. "The transition from traditional web or app search to agent-led commerce represents the next great evolution in retail. We aren't just watching the shift, we are driving it," John Furner, who was then on the cusp of becoming Walmart's CEO, said at the time. Meanwhile, PYMNTS CEO Karen Webster wrote earlier this week about the core challenge facing agentic commerce in this stage of its life. These models, she argued, are "breathtakingly amazing" at helping consumers research and shortlist their options. However, the infrastructure needed to actually curate all of the available options, and then complete the purchase, is a big gap that hasn't yet been filled. "What is billed as a revolution in commerce is, for now, mostly a highly intelligent search bar. A better one than Google. A more conversational one," Webster wrote. "But still, at its core, a tool that finds the answer and then hands the consumer off to someone else to close the deal."
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Google announced major updates to the Universal Commerce Protocol, adding Cart, Catalog, and Identity Linking capabilities that enable AI agents to shop more like humans. The open standard, developed with Walmart, Target, and other major retailers, aims to bridge the gap between AI-powered product discovery and actual purchase completion across the web.
Google has unveiled significant updates to the Universal Commerce Protocol (UCP), introducing three new capabilities designed to help AI agents replicate human shopping behaviors more effectively
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. The additions include a Cart feature that allows AI agents to save or add multiple items to a shopping cart simultaneously from a single store, mirroring typical shopper behavior2
. This development marks a notable step toward making AI shopping experiences feel more natural and intuitive for consumers navigating e-commerce platforms.
Source: PYMNTS
The Catalog capability represents another major enhancement, enabling AI agents to retrieve real-time product details from a merchant catalog when necessary, including variants, inventory levels, and pricing information
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. Perhaps most significantly for customer retention, the Identity Linking feature allows shoppers on UCP-integrated platforms to access the same loyalty benefits and member perks they would receive when logged into a retailer's site directly, such as special pricing or free shipping2
. This functionality aims to make shopping more connected across the web, addressing a critical pain point in agentic commerce.Google is actively working to simplify online shopping by streamlining the onboarding process for retailers through Google's Merchant Center, with the rollout planned over the coming months
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. The company confirmed that partners including Salesforce, Stripe, and Commerce Inc will implement the Universal Commerce Protocol on their platforms in the near future, with additional partners expected soon1
. This expansion could significantly accelerate adoption among retailers of varying scales, potentially standardize AI agent interactions across the industry.
Source: Google
The Universal Commerce Protocol was initially developed as an open standard in partnership with Walmart, Target, Shopify, Etsy, and Wayfair
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. The protocol moves away from relying on one-off integrations between AI agents and merchants, establishing a standardized approach for handling product discovery, checkout, and post-purchase support2
. Merchants can expose inventory, pricing, and fulfillment logic through the protocol, allowing agents to complete purchases without redirecting users to external sites.Related Stories
Google plans to integrate relevant UCP capabilities into shopping experiences within AI Mode in Google Search, the Gemini app, and other platforms
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. This integration positions Google to leverage its AI infrastructure for commerce applications, though questions remain about execution. According to PYMNTS CEO Karen Webster, while AI models excel at helping consumers research and shortlist options, the infrastructure needed to curate available options and complete purchases represents a significant gap2
. She characterized current agentic commerce as "mostly a highly intelligent search bar" that ultimately hands consumers off to complete transactions elsewhere2
.The updates signal Google's commitment to building infrastructure that addresses the current limitations of agentic commerce. As UCP adopters can customize their experience by selecting which capabilities to support, the flexibility may encourage broader adoption across diverse retail segments
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. The protocol's success will depend on whether it can truly close the gap between AI-assisted product discovery and seamless transaction completion, transforming what is currently an advanced search tool into a fully functional commerce platform.Summarized by
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