Marketplace Partners
Unlock the power of Marketplace APIs to manage items, orders, pricing, and so much more.
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Popular APIs to help you get started
From managing items to tracking fulfillment — explore our most popular endpoints.
Items
Create and manage item listings on Walmart.com.
Inventory
Keep your item inventory up-to-date.
Promotions
Set promotional item prices for events such as clearance sales or call out comparison prices
Ship with Walmart
Ship with Walmart (SWW) enables sellers to buy shipping at discounted rates directly from Walmart to ship their goods to U.S. customers.
Track your progress
Use testing environments and real-time API status updates to build solutions that last.
What's new?
The latest platform updates — here to help you build with confidence.
July 2, 2026
Update: Fitment vehicle details in the Orders management API Walmart has added new`VEHICLE_DETAILS` tags in a `miscAttribute` group type for order lines in the Orders Management API.
July 1, 2026
New: Get ship-on-date API The Walmart Ship With Walmart API now supports a new Get ship-on-date endpoint.
June 30, 2026
New: SEM item diagnostics and recommendations New SEM item diagnostics and campaign recommendations APIs are now available. Retrieve item-level diagnostics, issue metadata, and campaign optimization recommendations to help identify blocked items, resolve issues, and improve SEM campaign performance.
June 29, 2026
New: Marketplace sandbox recipes
We've introduced