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.
Feb 23, 2026
New: API integration basics certification course in Marketplace Learn A new Integrating with Marketplace APIs course is available in Marketplace Learn.
Feb 18, 2026
New: Dynamic sandbox and Simulations API Use the Simulations API to simulate items and orders in the Walmart Marketplace dynamic sandbox.
Feb 11, 2026
New: Order management webhook event, Feb 11, 2026 The On-Request Reports API now features an optional date range filter that can be used when requesting select reports using the POST Create Report Request endpoint.
Feb 04, 2026
New: Inventory recommendations report API Sellers can request Inventory Recommendations via API, which provides demand forecasts and OLQ signals without signing into Seller Center.