Amazon opened its Seller Central tools to outside AI agents at its Accelerate conference on September 23, 2026, starting with Anthropic’s Claude. A new Selling Partner plugin lets sellers manage inventory, pricing, listings and analytics from inside Claude or Amazon’s own Quick assistant, without opening Seller Central at all. The plugin is in beta for US sellers, with international expansion to follow.
What changed, exactly?
Three things shipped together. Seller Assistant gained persistent memory of each seller’s pricing patterns, inventory cycles and growth goals, and that memory carries across into Quick and Claude. It gained always-on workflows that run continuously in the background, monitoring conditions even when the seller is not logged in, rather than waiting to be asked. And it gained the Selling Partner plugin, which exposes that intelligence to outside AI tools.
Seller Assistant itself is not new. Amazon launched it in 2023 and it already runs on Claude models through Amazon Bedrock. Amazon says it has reached more than 90 percent of selling partners worldwide in their native language, has hundreds of thousands of active users, and that sellers accept its recommendations more than 90 percent of the time. Seller data used by Seller Assistant stays inside Amazon’s infrastructure and is not shared outside Amazon, the company said.
Eric Burns, field CTO at Anthropic, framed the seller-side value directly: the plugin brings Amazon’s data-driven insights into a seller’s Claude account alongside their existing accounting and supplier data connections.
Why is this a notable shift for Amazon?
Amazon has historically kept sellers inside its own interface. Letting them run their business from a third-party assistant loosens that grip, though Amazon still decides which platforms get supported. The contrast is sharp on the consumer side: days before this announcement, Amazon blocked Meta’s Muse, an AI agent that shops on behalf of consumers, from its store. Amazon’s position is that outside agents must identify themselves and follow the rules of the sites they use.
So the door is open for agents that help sellers spend money with Amazon, and closed for agents that help buyers shop across it. That is a coherent commercial position rather than a contradiction, but it is worth naming plainly. Amazon is also a major investor in Anthropic, which makes Claude the natural first partner.
What do sellers get right now?
- Selling Partner plugin in beta for US stores, working with Claude and Amazon Quick
- A canvas feature, a visual workspace generated from live seller data, for comparing pricing strategies or diagnosing ad campaigns
- Free 12-month Amazon Quick Plus subscription for every primary account holder globally, plus two co-workers, available through December 31, 2026
Amazon says roughly 90 percent of sellers already use outside AI to run parts of their operations, which is the real argument for the plugin. The work was happening anyway, just with sellers copying data between tools by hand.
The wider pattern
This is the enterprise version of a shift we have tracked across the year: platforms rebuilding so that agents, not humans, are the primary way business logic gets executed. It is the same direction as agents moving into customer support and the reason MCP-style connections have become infrastructure rather than a novelty. Worth noting the backdrop: seller fees brought Amazon 46.8 billion dollars in the second quarter, and those fees are among the issues in the FTC’s antitrust case against Amazon, set for trial in March 2027.
See Amazon’s own announcement and GeekWire’s report from Accelerate.
