Stephen Downes

Knowledge, Learning, Community

I can see the benefit the Universal Commerce Protocol (UCP), but the smarmy tone of this announcement turns me off. "By establishing a common language and functional primitives, UCP enables seamless commerce journeys between consumer surfaces, businesses, and payment providers." Ick. Anyhow, the intent of the standard is to support AI agents through a process of discovery, shopping cat, authentication (euphemistically called 'identity linking'), checkout (ie., credit card transactions), and order (which presumably includes fulfillment). It was developed by Shopify, Etsy, Wayfair, Target, and Walmart and endorsed by companies like Adyen, American Express, Best Buy, Flipkart, Macy's Inc, Mastercard, Stripe, The Home Depot, Visa, Zalando and many more.

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Stephen Downes Stephen Downes, Casselman, Canada
stephen@downes.ca

Copyright 2026
Last Updated: Jan 12, 2026 10:42 a.m.

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