Does ARC rank assistants by shopping ability?

ARC's leaderboard ranks agent paths on a fixed set of 100 stores, with sample sizes, not consumer apps.

Is ARC affiliated with any assistant maker?

No. ARC takes no payment from protocol, platform or model companies.

Can Meta's Muse buy from any store?

Muse is Meta's personal agent, powered by its Muse Wonder models. ARC does not test it, and does not state how it shops. Press reports say some stores, including Amazon, have blocked it. ARC shows whether a store blocks automated agents in general. The product name is not an ARC measurement.

ARC · Answers

Can Gemini, Meta's Muse or other AI assistants buy from a store?

ARC's data is the same starting point for every assistant, whether Gemini, Meta's Muse or another. It measures whether a store lets agents reach it, read products and get to checkout. It doesn't test any assistant's app. Check the store on ARC, then read that assistant's own merchant rules.

Why every assistant starts from the same base

ARC measures the store: can an agent reach it, read a product, and get to checkout. That evidence does not change when the question names Gemini, Meta's Muse, or another assistant. ARC does not test any assistant's app.

What ARC measured for a store

Open /store/{host}. The answer block quotes that store's checkout link, UCP profile, block status and browser cart, each labelled. A missing score is not a zero.

Muse, Meta's personal agent

Muse is Meta's personal agent, powered by its Muse Wonder models. Muse Wonder is the model name. That identification is not an ARC measurement, and ARC does not test Muse or state how it shops.

Gemini

A valid UCP profile is a public file ARC can fetch. ARC does not test Gemini, so a valid profile is not a promise that Gemini will list the store.

What depends on the assistant

Whether Gemini, Muse, or another named assistant will buy: Not measuredNot measured

Partner deals and store-specific blocks sit with the assistant's maker. Press reports say Amazon has blocked Muse. ARC did not measure that block. ARC does measure whether a store blocks automated agents in general, which is a different fact. See which stores block AI agents.

Questions to ask the assistant's maker

Is this merchant in your programme? Do you shop in a browser, through UCP, or both? Do you need a feed or a contract ARC cannot see? Those answers come from the company, not from ARC.

Frequently asked questions

Can Gemini, Meta's Muse or other AI assistants buy from a store?: ARC's data is the same starting point for every assistant, whether Gemini, Meta's Muse or another. It measures whether a store lets agents reach it, read products and get to checkout. It doesn't test any assistant's app. Check the store on ARC, then read that assistant's own merchant rules.
Does ARC rank assistants by shopping ability?: ARC's leaderboard ranks agent paths on a fixed set of 100 stores, with sample sizes, not consumer apps.
Is ARC affiliated with any assistant maker?: No. ARC takes no payment from protocol, platform or model companies.
Can Meta's Muse buy from any store?: Muse is Meta's personal agent, powered by its Muse Wonder models. ARC does not test it, and does not state how it shops. Press reports say some stores, including Amazon, have blocked it. ARC shows whether a store blocks automated agents in general. The product name is not an ARC measurement.

On ARC

Cite this: ARC, arcreport.ai, accessed 2026-10-13, CC-BY-4.0. Protocol figures: ARC saved checks, accessed 2026-10-13 (13 October 2026). Index browser figures: ARC open dataset snapshot 2026-10-12. Platform figures: ARC saved checks, accessed 2026-10-13.

Every figure is labelled Measured, Inferred or Not measured. Not measured is not zero. A missing result is not a mark against a store. ARC stops before payment.