Shopify Fall '26 Edition: Shop Pay Comes to AI Agents, Plus shop.md and an Agent Knowledge Base
Shopify's 'Exponential' release puts Shop Pay checkout in personal AI agents, opens its billion-product Catalog to any agent, and gives merchants control over what agents are told.
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Shopify's Fall '26 Edition, released October 28, 2026, centers on agentic commerce. Shoppers can now check out with Shop Pay inside personal AI agents, starting with Muse from Meta, Claude Duet and Instinct. Any agent can now use a shopping skill called shop.md. Merchants get a new knowledge base that controls what facts agents receive about their store.
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Shop Pay inside personal AI agents
Shop Pay checkout now works inside Muse from Meta, Claude Duet and Instinct. Claude Duet, Grok Bot and Instinct also offer Shop Pay for brands that don't sell on Shopify. Shopify says more than 400 million people already trust Shop Pay. The buyer stays in control of each purchase, and their card is never shared with the agent. For purchases from merchants outside Shopify, card tokens come from Mastercard, Visa and Discover, with American Express "coming soon."
shop.md: a shopping skill for any agent
Buyers can point ChatGPT, Claude or another agent to shop.md. The agent can then:
- search more than a billion products in Shopify Catalog
- check out with Shop Pay
- track orders
The skill draws on the buyer's Shop preferences, sizes and order history, and anyone can customize it. For developers, Shop.dev provides the same connection to Catalog, sign-in with Shop, cart and checkout, and Shopify says no key is required.
Merchant controls for the agent era
| Feature | What it does |
|---|---|
| Knowledge base (Sales channels > Agentic) | Shopify drafts store facts such as return windows and shipping destinations. Agents get only the facts the merchant publishes. |
| Catalog eligibility view | Shows whether a store qualifies for Shopify Catalog and links to fixes |
| Shopify connectors | Manage products, inventory and orders from nine agents: ChatGPT, Claude, Claude Duet, Microsoft Copilot, Google Gemini, Grok, Grok Bot, Muse and Perplexity |
| Google AI Mode and Gemini | Checkout powered by Shopify inside Google Search, including AI Mode, and the Gemini app, with orders managed in the admin |
| WebMCP tools | Browser agents can search, update the cart and complete checkout on Liquid and Hydrogen storefronts once the buyer approves |
According to Shopify's Help Center, direct checkout in Google AI Mode and Gemini is rolling out gradually. Eligible stores must sell to customers in the US, Canada or Australia and have a valid Google Merchant Center account.
Beyond agents
The release also includes:
- Universal Checkout: one checkout in the Shop app for carts that span multiple merchants
- Shop.com: Shop's new home on the web
- Payments: seven new local payment methods, including Alipay, WeChat Pay and OXXO
- Shopify Protect: a set of fraud and dispute tools with a rule builder
- Sidekick: a rebuilt assistant that can write code and search the web, plus Canvas for visual store editing, now in early access
- Admin: a redesigned Shopify admin
What merchants should do
- Knowledge base: go to Sales channels > Agentic, then review and publish your store's facts so agents describe your policies accurately.
- Catalog eligibility: check the eligibility view and fix any problems, because agents such as ChatGPT, Copilot and Meta's get product data from the Catalog.
- Google checkout: if you sell to the US, Canada or Australia, confirm your Merchant Center setup for Google checkout.
More on AI commerce is in our Artificial Intelligence hub.
How we reported this
We checked each claim against Shopify's merchant and developer announcements, the Fall '26 Editions page and the Help Center. We restructured the draft with a proper headline and section headings.
Sources
- Shopify: Exponential: Shopify's Fall '26 Edition, Oct 28, 2026.
- Shopify: The Fall '26 Edition for developers, Oct 28, 2026.
- Shopify Editions: Fall '26
- Shopify Help Center: Selling on Google AI Mode and Gemini
DailyMech used AI tools to help research and draft this article; it was fact-checked by our editors.