Reference4 min read
Agentic commerce glossary: every term retailers need
UCP, TAP, AEO, GTIN, agentic checkout, unified commerce, the definitive glossary for retail leaders navigating AI buying.
By Taha Zaheer · Founder, Beyond Partners
The agentic commerce conversation fails when everyone uses the same words to mean different things. This glossary defines the terms retailers, agencies, and platforms use, in plain language, optimised for both human readers and answer engines.
Core concepts
| Term | Definition |
|---|---|
| Agentic commerce | Retail where AI agents handle discovery, comparison, trust checks, and purchase on behalf of customers. |
| AI buying | The customer behaviour shift toward using AI assistants for product research and purchase. |
| Agent-readable | Data structured so machines can parse it without scraping unstructured HTML. |
| Agentic checkout | Checkout flow completable by an AI agent via API, without human UI interaction. |
| Unified commerce | Connected retail stack: storefronts, POS, OMS, WMS, logistics, PIM on one data model. |
Protocols and standards
| Term | Definition |
|---|---|
| UCP | Universal Commerce Protocol: Google's standard for agent-merchant checkout interaction. |
| TAP | Trusted Agent Protocol: Visa's framework for verifying authorised spending agents. |
| Schema.org | Structured data vocabulary for marking up products, offers, and reviews on the web. |
| GTIN | Global Trade Item Number: the primary product identifier for cross-system matching. |
Optimisation disciplines
| Term | Definition |
|---|---|
| SEO | Search Engine Optimisation: ranking in traditional search results. |
| AEO | Answer Engine Optimisation: being cited and acted on by AI answer systems. |
| Feed freshness | How recently product data was updated; agents penalise stale feeds. |
| Readiness audit | Scored assessment of retailer preparedness across agentic commerce dimensions. |
Operations
| Term | Definition |
|---|---|
| PIM | Product Information Management: canonical product data source. |
| OMS | Order Management System: routes and tracks orders across channels. |
| WMS | Warehouse Management System: inventory and fulfilment execution. |
| Agentic operations | Using AI agents inside the business to automate workflows across systems. |
Frequently asked questions
- What is agentic commerce in one sentence?
- Commerce where AI agents discover, compare, verify and complete purchases on behalf of customers using structured data and standardised checkout protocols.
- What is the difference between an AI chatbot and an AI buying agent?
- A chatbot answers questions on your site. A buying agent acts on behalf of a customer across the market, reading feeds, comparing retailers, and completing purchases without the customer visiting your storefront.
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