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In April 2025, Amazon launched \u201cBuy for Me,\u201d<\/a> which lets its AI agent visit brand websites, select products, enter payment details, and complete purchases without the customer ever leaving the Amazon app. By September, OpenAI had introduced \u201cInstant Checkout\u201d<\/a> with the open-source Agentic Commerce Protocol, enabling purchases directly inside ChatGPT. In January 2026, Google unveiled the Universal Commerce Protocol<\/a> at the National Retail Federation conference: an open standard, built with Shopify, Target, Walmart, and more than 20 other partners, covering the shopping process from discovery to post-purchase support. Microsoft launched Copilot Checkout<\/a> at the same conference, and Shopify has since switched on agent-readable storefronts by default<\/a> across millions of merchants. Gartner now projects<\/a> that by 2028, 90% of B2B purchases, more than $15 trillion, will flow through AI agent exchanges.<\/p>\n<\/div>\n