The Three Errands That Failed
On September 9, one day after Meta launched Muse, PYMNTS ran the agent through three basic consumer tasks: reordering toilet paper on Amazon, ordering a pizza from Domino’s, and booking a reservation on Resy. All three failed. PYMNTS reported the problem was not the AI’s reasoning. “It came down to everything required before Muse could even attempt a task,” the outlet wrote. “It needed Amazon credentials shared through a secure link before it could see order history. Gmail and Calendar each had to be connected individually, through their own separate authorization flow.”
For comparison, PYMNTS timed the same toilet paper reorder directly on Amazon. “It took less than 30 seconds, with no credential sharing, no separate app connections and no failed checkout.” That gap – between what the agent promises and what it took to attempt anything – is where the structural story begins.
Shopify Goes Agent-Ready by Default
On September 21, Shopify CEO Tobi Lütke announced Shop Pay is live for Meta’s Muse across all Shopify-powered stores. This followed Shopify’s December 2025 launch of Agentic Storefronts, which made every eligible US-selling store discoverable in AI agent channels by default – no merchant setup required. Products in the Shopify Catalog are auto-shared with Muse. “We’re making every Shopify store agent-ready by default,” Lütke said. “Shopify is the easiest solution for merchants who want AI agents to find their storefronts, understand their products, and complete transactions.”
The numbers back the bet. In Q1 2026, AI-driven traffic to Shopify stores grew 8x year-over-year, while orders from AI-powered searches grew approximately 13x. The PYMNTS test failures, however, predate Shop Pay’s launch. When PYMNTS tested Muse on September 9, “Muse routed payment through Link, a checkout system built by Stripe,” according to the outlet’s report. Shop Pay was not yet live. The distinction matters: Stripe Link and Shop Pay are different infrastructure classes, and the friction PYMNTS observed reflects the Stripe Link experience, not the path Shopify opened twelve days later.
Amazon Blocks, Shopify Opens
The same day Shopify launched Shop Pay for Muse, Amazon took the opposite position. Amazon blocked Meta’s Muse agent from shopping on its marketplace, citing an unauthorized AI agent. The two moves landed on the same day, and the split is now structural: Shopify has opened its entire catalog to agent commerce; Amazon has locked its door.
For independent merchants – those running on their own sites, WooCommerce, BigCommerce, or custom stacks – the picture is more fragmented. Stripe Link covers over a million businesses, and for merchants not on Link, Stripe can issue single-use virtual cards scoped to specific transactions. But neither path matches the seamlessness of a platform-native integration where the catalog, the checkout, and the merchant relationship are already wired together.
The Gap That Remains
Muse has three checkout paths: Shop Pay for Shopify merchants, Stripe Link for the broader merchant base, and browser automation as a fallback. The PYMNTS data captured the Link path – and it showed friction that a person would never tolerate from a task they could finish themselves in thirty seconds.
Whether Shop Pay resolves that friction is the open question. It launched on September 21, and there is no public test data yet showing it works reliably inside Muse. What is clear is the direction of travel. Visa, Mastercard, and Ant International are building cross-network agent identity frameworks. Ant Group is restructuring its entire payments business around agentic commerce while admitting the rollout has been slower than expected. The infrastructure is arriving. The question is whether the checkout actually works when the agent reaches the merchant’s door.