AI Commerce

Agentic Commerce: How AI Agents Are Changing Google Shopping

Last updated: February 2026 - 15 min read
Samuli Kesseli
Samuli Kesseli

Senior MarTech Consultant

AI agents are learning to shop. Google's Universal Commerce Protocol (UCP), OpenAI's Agent Commerce Protocol (ACP), and new ad formats like Direct Offers are reshaping how products are discovered and purchased. This guide covers everything e-commerce advertisers need to know.

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Explore specific topics in detail:

What Is Agentic Commerce?

Agentic commerce is a new model where AI agents handle product discovery, comparison, and purchasing on behalf of consumers. Instead of a shopper typing queries, browsing results, and clicking "Buy Now," an AI assistant does it all—finding the right product, evaluating options, and completing the transaction. This shift is part of a broader trend in AI-powered shopping experiences across the industry.

This is not a theoretical future. Google's AI Mode already surfaces product recommendations in conversational search. Direct Offers let brands present exclusive deals inside AI conversations. And the Universal Commerce Protocol (UCP) provides the infrastructure for AI agents to transact directly with merchants.

Agentic commerce ecosystem architecture diagram showing how AI agents connect through UCP and ACP protocols to merchants and consumers
The agentic commerce ecosystem: AI agents use protocols like UCP and ACP to connect merchants with consumers.

Why It Matters for Advertisers

When AI agents mediate purchases, the rules of product visibility change:

Google's Universal Commerce Protocol (UCP)

UCP is Google's framework for enabling AI agents to interact with product catalogs and complete transactions. It builds on existing Merchant Center infrastructure, meaning most Google Shopping advertisers already have the foundation in place.

UCP standardizes how AI agents discover products, check availability, compare prices, and process orders. For advertisers, the key implication is that your Merchant Center feed is no longer just for Shopping ads—it is the primary interface between your products and AI agents.

Deep Dive

Read our full UCP Explainer for the technical details, or start with the Feed Readiness Checklist for immediate action items.

UCP vs ACP: Two Competing Standards

OpenAI has introduced its own protocol—the Agent Commerce Protocol (ACP)—designed as an open standard for any AI agent to interact with any merchant. While UCP leverages your existing Google Merchant Center feed, ACP requires building new API endpoints.

For most Google Shopping advertisers, UCP readiness is the immediate priority. But understanding both protocols helps you plan for a multi-agent future. Read our full UCP vs ACP comparison.

Comparison table of Google Universal Commerce Protocol (UCP) versus OpenAI Agent Commerce Protocol (ACP) covering architecture, integration, and merchant requirements
Google UCP vs OpenAI ACP: key differences in architecture, integration requirements, and merchant adoption paths.

New Ad Formats for AI Shopping

Google is rolling out ad formats specifically designed for AI-mediated shopping:

How to Prepare Your Business

1. Audit Your Product Feed

Your Merchant Center feed is your primary asset in agentic commerce. Every attribute matters: titles, descriptions, prices, images, availability, GTINs, and product categories. Use our UCP Product Feed Readiness Checklist for a step-by-step audit.

2. Set Up Revenue Tracking

When AI agents complete purchases without sending users to your website, traditional analytics miss those conversions. Build new measurement frameworks now. Our AI Agent Revenue Tracking guide covers practical strategies.

3. Monitor Competitive Pricing

AI agents are price-aware. They compare your prices against competitors in real-time. Maintaining price competitiveness is no longer just about winning ad auctions—it directly affects whether AI agents recommend your products.

4. Stay Current

Agentic commerce is evolving rapidly. New protocols, ad formats, and agent capabilities are being announced regularly. Follow the developments and adapt your strategy as the landscape matures.

Three-tier agentic commerce readiness assessment checklist covering feed optimization, protocol integration, and revenue tracking
Agentic commerce readiness checklist: assess your preparedness across feed quality, protocol integration, and measurement.

Frequently Asked Questions

What is agentic commerce?

Agentic commerce is a new model where AI agents browse, compare, and purchase products on behalf of consumers. Instead of a human clicking through search results, an AI assistant handles the entire shopping journey—from product discovery to checkout.

How does agentic commerce affect Google Shopping advertisers?

AI agents evaluate your product feed data directly rather than relying on ad placements. Feed quality, structured data completeness, and pricing accuracy become even more critical. New ad formats like Direct Offers let brands participate in AI-mediated shopping experiences.

What is the difference between UCP and ACP?

Google's UCP builds on existing Merchant Center infrastructure. OpenAI's ACP is an open standard requiring new API endpoints. Most Google Shopping advertisers should prioritize UCP readiness first, then evaluate ACP for broader reach.

How do I prepare my product feed for agentic commerce?

Ensure every product has accurate titles, descriptions, prices, images, GTINs, availability, and product categories. Add conversational attributes that help AI agents answer shopper questions. Keep your feed updated in real-time. Use our UCP Product Feed Readiness Checklist for a complete audit.

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