Shopify announced on Monday that browser-based AI agents can now complete purchases on merchant sites. This update extends capabilities beyond searching for products and adding items to carts. Some retailers like Amazon and Adidas are blocking AI agents from making purchases on their platforms. Shopify moved in the opposite direction.
Agents process transactions directly
Shopify previously supported WebMCP for storefronts and carts. This allowed browser-based agents to search inventory and add items to carts. The company now adds WebMCP support for checkout, including Shop Pay. Agents can read checkout screens, update them, and submit transactions with buyer authorization. They do not rely on screenshots or web scraping.
The update introduces three new tools named get_checkout, update_checkout, and complete_checkout. These tools let agents inspect checkouts, change addresses or delivery options, and place orders after buyer authorization. Gil Greenberg, a staff product manager working on agentic commerce at Shopify, announced the feature in a post on X.
Standards connect agents and merchants
Shopify already offers a hosted Model Context Protocol server for server-to-server agent work. The proposed standard WebMCP is designed for agents operating inside the buyer browser. Both leverage Shopify Universal Commerce Protocol, which provides a common way to search products, build carts, and check out.
Top AI agents like Muse and Instinct already have direct partnerships with Shopify for agentic commerce. The Instinct partnership was announced alongside the new feature. Greenberg stated that agents operating in the buyer browser should use WebMCP tools to efficiently complete order placement instead of navigating human HTML.
The feature is rolling out to all eligible Shopify merchants.
