Shopify has taken a significant step by enabling browser-based AI agents to complete full purchases on its merchants’ websites. Previously, these AI agents could search product inventories and add items to shopping carts, but now Shopify extends support to the checkout process via WebMCP, including integration with Shop Pay. This allows agents to interact directly with checkout screens, update order details, and finalize transactions once the buyer authorizes the action, bypassing less reliable methods like webpage scraping or screenshot analysis.

This new capability comes through three WebMCP tools—get_checkout, update_checkout, and complete_checkout—that empower AI agents to inspect and modify checkout information such as delivery addresses and shipping options. Shopify is rolling out this feature to all eligible merchants and highlights how these API-driven tools enable an efficient, accurate commerce experience tailored for AI agents functioning within a buyer’s browser environment. Gil Greenberg, a Shopify product manager overseeing agentic commerce, emphasizes that this structured approach ensures necessary accuracy and compliance in transactions.

Shopify’s development sits in contrast to platforms like Amazon and Adidas, which have opted to block AI agents from conducting purchases on their sites. The introduction of WebMCP at checkout reinforces Shopify’s commitment to agentic commerce, underpinned by its Universal Commerce Protocol (UCP). This protocol standardizes how AI systems search products, build carts, and process orders, giving AI agents a seamless and officially supported method to interact with e-commerce functions directly.

The move also strengthens partnerships with top AI agent developers such as Muse and Instinct, the latter of which was announced alongside this update. Shopify offers a hosted Model Context Protocol (MCP) server for server-to-server agent interactions and now complements it with standards tailored for browser-based agents. This layered infrastructure positions Shopify as a leading platform innovating in AI-driven shopping automation while keeping buyers in control through explicit authorization steps.