Marketplace Partners
The Walmart Marketplace APIs provide resources for sellers to manage items, orders, prices, promotions, inventory, and reports on Walmart.com. The Walmart Developer Portal provides all the tools you need to directly integrate with Walmart Marketplace APIs.
Getting started guide for
sellers
Learn how to register as a seller with Walmart Marketplace, and get an overview of how to integrate with Marketplace APIs.
Get started
Getting started guide for
solution providers
Learn how to register as a solution provider with Walmart Marketplace, and get an overview of how to integrate with Marketplace APIs.
Get startedAPI references
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.
What's new
Deprecation notice: Item spec 4.x versions
The Marketplace Item team will be deprecating the Item spec sheet 4.x on August 31st, 2025. The new Omni 5.x spec offers improved data accuracy, easier item maintenance, and seamless integration with the new Product Type attributes.
New WFS Inventory API
We’re pleased to announce the launch of a new WFS Inventory API. The WFS Inventory API provides real-time inventory data for items fulfilled through Walmart Fulfillment Services (WFS).
New API endpoints for Seller Performance Standards
Seller Performance Standards, previously only available on Seller Center, are now accessible through both the Seller Center and API endpoints.
Item spec 5.0 update
Check out the latest enhancements and features in the Item spec 5.0 update. Don't miss out on the exciting improvements!