---
id: "entity-universal-commerce-protocol-d4"
type: "entity"
entityType: "product"
canonicalName: "Universal Commerce Protocol"
aliases: ["UCP"]
source_timestamps: ["§ Reinvent"]
tags: ["open-standards", "api", "ecommerce"]
related: ["concept-agent-ready-architecture", "entity-google", "entity-shopify"]
sources: ["attention"]
sourceVaultSlug: "hbr-seg-attention"
originDay: 4
articleStem: "hbr-foci-69-ai-threatening-platforms"
sourceUrl: "https://hbr.org/2026/04/how-ai-is-threatening-platforms-revenue-streams"
sourceTitle: "How AI Is Threatening Platforms’ Revenue Streams"
---
# Universal Commerce Protocol (UCP)

The **Universal Commerce Protocol (UCP)** is an open standard co-developed by [[entity-google-d69]] and [[entity-shopify]] in **January 2026**, endorsed by **over 20 partners including Target, Walmart, Visa, and Mastercard**.

It gives AI agents a *common language* to discover products, initiate transactions, and manage orders from any merchant. The article cites UCP as the prime real-world example of platforms **Reinventing** for the agentic era — the concrete embodiment of [[concept-agent-ready-architecture]] and the *Reinvent* tier of [[framework-platform-response]].