Amazon and Walmart are the two dominant forces in US retail. They are also taking fundamentally different approaches to agentic commerce — and those differences will shape how payments, checkout, and consumer trust get redesigned over the next three years. This divergence has direct implications for card networks, payment processors, authentication infrastructure, and anyone building for the future of checkout.
Amazon: Closed Stack, Agentic Inside-Out
Amazon is building agentic commerce from the inside out — embedding AI agents deep into its own proprietary infrastructure and deliberately keeping external agents at arm’s length. The strategy is control through ownership.
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