Universal Commerce Protocol (UCP)

Google's open standard, launched in 2026, for AI agents to handle discovery, checkout, and post-purchase support with merchants across AI Mode and Gemini.

By Brandon MinaCEO, BrandPilot AIUpdated November 2026

Short answer

Universal Commerce Protocol (UCP) is Google's open standard, launched in 2026, for AI agents to handle product discovery, checkout, and post-purchase support with merchants. It works across Google's AI Mode and Gemini. By standardizing these interactions, it lets merchants connect once rather than building separate integrations for each agent.