#UCP

2 articles tagged

Isometric diagram of one checkout core linked to two agentic protocol adapters

Web & API Development · Jul 16, 2026 · 20 min read

ACP vs UCP in 2026: one checkout core, two adapters, and why UCP ships first

OpenAI and Stripe's ACP and Google's UCP now overlap enough that one checkout core plus two thin adapters is the sane build. The March 2026 pullback changes which adapter you ship first.

Manu Shukla

#agentic commerce #UCP #ACP

Diagram comparing UCP, ACP and AP2 agentic commerce standards as three converging protocol layers

Web & API Development · Jul 15, 2026 · 17 min read

UCP vs ACP vs AP2 in 2026: which agentic commerce standard merchants should build on

OpenAI shut Instant Checkout in March 2026, six months after launch, with about a dozen merchants live. Google's UCP kept expanding. Here is how UCP, ACP and AP2 actually stack up, and what to build first.

Manu Shukla

#agentic commerce #UCP #ACP