Google has launched the Universal Commerce Protocol (UCP), an open-source standard that allows AI agents to handle online shopping from start to finish. This includes product search, price comparison, checkout, and post-purchase support.
UCP was created with input from major retailers and payment providers like Walmart, Target, Etsy, Shopify, Stripe, and Visa. It gives AI developers a common framework to connect with different merchants and payment systems without building custom integrations for each one.
The protocol works with other standards like Agent Payments Protocol (AP2) for payments, Agent2Agent (A2A) for AI-to-AI communication, and Model Context Protocol (MCP) for shared context. This makes AI shopping more secure, interoperable, and easier to implement.
Analysts say UCP could redefine e-commerce, making AI assistants a central tool for online shopping and potentially transforming how people buy goods digitally.
For users, the biggest change is convenience. AI agents running in Google Search or the Gemini app can manage the full shopping process within Google’s interface. Payments will initially go through Google Pay, while retailers continue to control data and transactions.
