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
New Entity Match API
We’re excited to announce the launch of Entity Match API, designed to streamline the way we share seller entity data with our Payout Service Providers.
Item spec version update and new features
A new version of Item spec, 5.0.20250605-14_26_25, is now available. To download a copy or review a comprehensive list of all the minor and major changes, refer to the Item spec reporting and version table.
New Walmart Multichannel Solutions (MCS) Sales Channel APIs
We’re pleased to announce the launch of a new Walmart Multichannel Solutions (MCS) Sales Channel APIs, giving sellers and partners the tools to integrate and manage sales channels beyond Walmart.com.
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.