Reference
Agentic Commerce Glossary
Key terms and protocols powering the shift to AI-driven commerce. Each entry includes a concise definition, technical details, and FAQs.
Agentic Commerce Protocol (ACP)
ACP is an open-source checkout protocol by Stripe and OpenAI that enables AI agents to complete purchases on behalf of consumers.
Universal Commerce Protocol (UCP)
UCP is an open standard by Google and Shopify that enables AI agents to handle the full commerce journey from discovery to post-purchase.
Model Context Protocol (MCP)
MCP is an open standard originally created by Anthropic that provides a universal way for AI agents to connect to external data sources in real time.
ChatGPT Shopping
ChatGPT Shopping is OpenAI's built-in commerce feature that lets consumers discover, compare, and buy products directly inside ChatGPT conversations.
Generative Engine Optimization (GEO)
GEO is the practice of structuring digital content to maximize visibility in AI-generated responses from ChatGPT, Google AI, and Perplexity.
Product Feed Management
Product feed management is the process of creating, optimizing, and distributing structured product data to sales channels like Google, Amazon, and AI agents.
Product Data Enrichment
Product data enrichment is the process of enhancing raw product information with additional attributes, descriptions, and metadata to improve discoverability and conversions.
AI Visibility for Commerce
AI visibility for commerce measures how discoverable your products and brand are when consumers ask AI agents for shopping recommendations.
Instant Checkout (ChatGPT)
Instant Checkout is ChatGPT's in-conversation purchase feature that lets consumers buy products without leaving the chat, powered by ACP and Stripe.
Product Feed Optimization for AI
Product feed optimization for AI is the practice of structuring and enhancing product data specifically for discovery and recommendation by AI shopping agents.
Conversational Commerce
Conversational commerce is the practice of selling products through chat-based interfaces -- from messaging apps and chatbots to AI shopping agents.
Digital Shelf and AI
The digital shelf is every online touchpoint where consumers discover products -- now expanding to include AI shopping agents alongside traditional search and marketplaces.
AI Commerce Protocols
AI commerce protocols (ACP, UCP, MCP) are the open standards that define how AI agents discover products, complete checkouts, and access merchant systems.
Zero-Click Buying
Zero-click buying is the emerging concept where AI agents complete purchases autonomously without the consumer ever visiting a retailer's website or app.
llms.txt for Ecommerce
llms.txt is a proposed web standard that provides AI systems with a structured, plain-text summary of a website's content for faster and more accurate comprehension.
AI Shopping Agent
An AI shopping agent is software that autonomously searches, compares, and purchases products on behalf of a consumer through natural language conversation.
Perplexity Shopping
Perplexity Shopping is an AI-powered product discovery and purchasing feature that lets consumers find, compare, and buy products directly from Perplexity search results.
Google AI Mode Shopping
Google AI Mode Shopping integrates product recommendations and purchasing directly into Google's AI-generated search results, combining Google Shopping data with conversational AI.
AI Product Recommendations
AI product recommendations use machine learning to suggest relevant products to consumers based on intent, behavior, and context -- increasingly through AI agents rather than on-site widgets.
AI Catalog Management
AI catalog management uses artificial intelligence to automate product data creation, enrichment, categorization, and optimization across sales channels.
Multi-Channel AI Commerce
Multi-channel AI commerce is the practice of distributing product catalogs across multiple AI shopping platforms simultaneously -- ChatGPT, Perplexity, Google AI Mode, and others.
AI Commerce Platform
An AI commerce platform is infrastructure that connects product catalogs to AI shopping agents, handling protocol compliance, feed optimization, and checkout integration.
Product Feed API
A product feed API is a programmatic interface that enables automated exchange of product catalog data between ecommerce systems and sales channels, including AI shopping platforms.
AI Merchandising
AI merchandising uses artificial intelligence to automate product assortment, placement, pricing, and presentation decisions across traditional and AI-powered sales channels.
Agentic Storefront
An agentic storefront is a merchant's presence within AI shopping agents -- the product data, checkout integration, and brand representation that appears when AI agents recommend their products.
Headless Commerce and AI
Headless commerce separates the frontend presentation from backend commerce logic -- a critical architecture for connecting product catalogs to AI shopping agents.
AI Checkout
AI checkout enables consumers to complete purchases within AI agent conversations -- without visiting a retailer's website -- through protocols like ACP and PayPal integration.
Structured Product Data
Structured product data is machine-readable product information organized in standardized formats like Schema.org, enabling search engines and AI agents to understand and recommend products.
AI Shopping Search
AI shopping search replaces traditional keyword-based product search with natural language, conversational queries that AI agents interpret to find and recommend products.
Commerce AI Integration
Commerce AI integration is the process of connecting ecommerce systems to AI shopping platforms, enabling product discovery and purchasing through AI agents.
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