Two retail giants are taking opposite positions on AI agents that shop for people. Walmart announced its Agent Gateway on October 21, 2026, as reported by TechCrunch and Axios.
What Walmart announced
- An MCP (Model Context Protocol) server for approved agents to search online inventory and make purchases, covering Walmart and Sam’s Club.
- Agent Profiles (rolling out next month): each agent gets its own profile so purchases are tracked separately. Shoppers can require approval per transaction or pre-approve purchases under a limit.
- Agents cannot access payment information, cannot act beyond shopper intent, and see only task-relevant data. Non-compliant agents will be blocked. Walmart’s returns process applies even if an agent errs.
- Integrations include Meta’s Muse, ChatGPT, Gemini and other AI apps. A Walmart+ membership is not required.
Amazon’s side
Amazon has begun blocking AI agents from buying on shoppers’ behalf. Coverage links this to agents including Meta’s Muse; the TechCrunch article does not detail which agents are blocked, so treat specifics as unconfirmed here.
Where to be skeptical
- Details come from Walmart’s own announcement; Agent Profiles are not live yet.
- Walmart’s enforcement mechanism beyond blocking is unspecified.
- Openness is also strategy: Walmart gains distribution inside AI apps, while Amazon protects its own search, ads and assistant revenue. Neither is purely about the shopper.
Takeaway
Retailers now have to choose between being a destination and being an API. Expect more sites to publish agent terms and spending controls, and for businesses building shopping agents to depend on which doors stay open.
