Meta gives Muse a checkout with five retailers and three payment rails in 15 days

The order of the dates says more than the partner list does. Muse launched on September 8 with Stripe Link as its only payment rail ^[2][5]. Shopify's Shop Pay arrived around September 21-22 and PayPal around September 22, so two of the app's three rails were connected in the two days before the September 23 retail announcement ^[5][14]. Fifteen days separate launch from the partner list ^[13]. That sequence fits the per-transaction plan Zuckerberg has indicated, according to Crypto Briefing ^[9].

Crypto Briefing's report does not include a fee rate, a payer, or any sign that the five retailers agreed to pay Meta per order. The only prices published are the paid tiers, $20 and $100 ^[8]. At a fee of one percent of purchase value, a user would have to put $2,000 of purchases through Muse to produce the $20 of the lower tier, and $10,000 to match the upper one ^[15][16]. Small fees need volume. Muse logged 2.5 million to 2.8 million US downloads in its first two weeks ^[6], roughly 180,000 to 200,000 a day ^[17], but a download is not a checkout, and Meta requires the user's approval before the agent completes any transaction ^[4].

The fee can land in three places. If retailers pay it, Muse is charging a commission on completed sales, and Meta keeps billing merchants, the side of the market a company built on advertising already sells to ^[12]. Shoppers paying it would put a charge on top of a free tier and two paid ones ^[8]. A fee too small to matter leaves the tiers carrying the revenue, and Muse becomes a subscription app with a checkout attached. In my view the first version is the one the record points to, because all five deals are with retailers ^[1] and the only charge shoppers see is the tier list ^[8]. The counter-reading is that the partnerships buy access and nothing else: a way past the kind of refusal Amazon issued, with no money changing hands per order.

Amazon is the hard limit on any of these. Muse already runs its tasks in a sandbox Meta calls the Muse Secure VM ^[3] and asks for approval before paying ^[4]. Amazon blocked it anyway, in mid-to-late September, citing consent and credential security ^[7]. Whatever Meta charges, it charges only on orders in stores that let the agent in.

Every rail Muse uses belongs to another company: Stripe, Shopify and PayPal ^[5]. Meta has spent its first two weeks connecting other firms' payment systems and signing merchants, and it has signaled that more shopping connectors and payment options are coming ^[10].

The thesis that Muse is a fee business fails on two tests. One is Meta's first disclosed Muse revenue coming mostly from the $20 and $100 tiers ^[8]. The other is the partner retailers turning out to pay nothing per order. Either result would leave Zuckerberg's per-transaction plan as a stated intention ^[9].