Shopify opens checkout to browser-based AI agents

# Shopify opens checkout to browser-based AI agents | TechCrunch Source: [https://techcrunch.com/2026/09/28/shopify-opens-checkout-to-browser-based-ai-agents/](https://techcrunch.com/2026/09/28/shopify-opens-checkout-to-browser-based-ai-agents/) While some retailers, like[Amazon](https://www.bloomberg.com/news/articles/2026-09-21/amazon-blocks-meta-s-muse-ai-agent-from-its-retail-site)\(and[Adidas](https://x.com/kesslerIO/status/2104397316673462339), apparently\!\), are[blocking](https://x.com/kesslerIO/status/2104397316673462339)AI agents from making purchases on users’ behalf on their respective platforms, e\-commerce platform Shopify has moved in the other direction\. On Monday, the company[announced](https://x.com/gilgNYC/status/2104583942728822998)that browser\-based AI agents can now complete purchases on Shopify merchants’ sites, extending their capabilities beyond just searching for products and adding items to carts\. Shopify previously supported[WebMCP](https://shopify.dev/docs/api/web-mcp)for its storefronts and carts, allowing browser\-based AI agents to comb through a Shopify retailer’s inventory, search for products, and add them to a cart\. The addition of WebMCP support for checkout, including Shop Pay, means these agents can now read the checkout screen, update it, and submit the transaction with the buyer’s authorization, without relying on screenshots or scraping webpages, the company said\. **Image Credits:**ShopifyThis update introduces three new tools — get\_checkout, update\_checkout, and complete\_checkout — that allow agents to inspect a checkout, change things like the customer’s address or delivery option, and then place an order after the buyer authorizes it\. The feature is rolling out to all eligible Shopify merchants, said[Gil Greenberg](https://www.linkedin.com/in/gilgreenberg/), a staff product manager who works on agentic commerce at Shopify, in a[post on X](https://x.com/gilgNYC/status/2104583942728822998)\. > Shopping with an agent shouldn’t feel like watching paint dry\. 🥱 Today, we’re launching WebMCP support for checkout, including Shop Pay, for all eligible Shopify merchants\. Learn how it works, where UCP fits, and what the data shows:[https://t\.co/U96VtJaeyc](https://t.co/U96VtJaeyc) — Gil \(@gilgNYC\)[September 28, 2026](https://x.com/gilgNYC/status/2104583942728822998?ref_src=twsrc%5Etfw) Shopify already offers a hosted[Model Context Protocol \(MCP\)](https://modelcontextprotocol.io/docs/2026-07-28/getting-started/intro)server, which allows agents to work server\-to\-server\. The proposed standard[WebMCP](https://shopify.dev/docs/api/web-mcp), meanwhile, is designed for agents that work inside the buyer’s browser\. Both leverage Shopify’s[Universal Commerce Protocol](https://www.shopify.com/ucp)\(UCP\), which provides a common way to search for and discover products, build carts, and check out\. Top AI agents like[Muse](https://www.wsj.com/tech/shopify-to-use-metas-muse-for-agentic-checkout-d23947c0)and[Instinct](https://x.com/noahrshinn/status/2104628465488306183)already have direct partnerships with Shopify for agentic commerce\. The Instinct partnership was[announced](https://x.com/noahrshinn/status/2104628465488306183)today\. “If your agent is operating in the buyer’s browser, use WebMCP tools provided on storefront and checkout to efficiently complete order placement, instead of navigating HTML built for humans,” Greenberg wrote on X\. “These WebMCP tools provide structured and efficient APIs, purposely designed — via UCP — to ensure accurate commerce facts, required disclosures, and handoff requirements\.” *When you purchase through links in our articles,[we may earn a small commission](https://techcrunch.com/techcrunch-affiliate-monetization-standards/)\. This doesn’t affect our editorial independence\.* Sarah has worked as a reporter for TechCrunch since August 2011\. She joined the company after having previously spent over three years at ReadWriteWeb\. Prior to her work as a reporter, Sarah worked in I\.T\. across a number of industries, including banking, retail and software\. You can contact or verify outreach from Sarah by emailing[sarahp@techcrunch\.com](mailto:[email protected])or via encrypted message at sarahperez\.01 on Signal\. [View Bio](https://techcrunch.com/author/sarah-perez/)