Walmart Developer Portal

Marketplace seller and supplier developers can get access to API tools and documentation to integrate with the Walmart eCommerce platform.



To start integration process you need to register as a Marketplace Seller to get API keys

Try out the APIs in API Explorer!Get Started »


Drop Ship Vendors

To start the integration process, you need to register as a Drop Shift Vendor to get API keys.

Try out the APIs in API Explorer!Get Started »


Warehouse Suppliers

To start integration process you need to register as a Warehouse supplier to get API keys.

Try out the APIs in API Explorer!Get Started »


Content Providers

To start integration process you need to register as a Content Service Provider to get API keys

Get Started »


Welcome to the Walmart Developer Portal! Marketplace sellers and suppliers can find all the tools they need to begin the API integration process and access the API documentation. The API documentation provides seller and supplier developers and partners with the tools to become Drop Ship Vendors (DSVs), Marketplace Sellers, or Content Service Providers along with the developer solutions to succeed with their customers. Get started now and begin the API integration process and access the API documentation. Also, learn about product XSDs and use the API Explorer page to test your APIs.

We provide a comprehensive suite of tools to support our Partners:
  • API Status checker – Verify status of all APIs.
  • Try it Out – Try out API calls in the browser and view responses.
  • API Sandbox – Test your APIs on the backend.
  • API Documentation – How-to guides, API Reference, and FAQ.
To stay up to date with the latest offerings of the Walmart API Developer Portal, be sure to check out our What’s New page!
Access our comprehensive documentation to learn about our RESTful APIs. The API reference provides details about the endpoints, request/response structures, and sample codes. You can also find information about throttling limits, error codes, and other useful information. In addition, you can download the latest version of the XSDs.

How to get started

How do I get started?
Register to get your API Key

To get your API key, you need to register as a Marketplace Seller, Supplier, Solution Provider or Content Service Provider:

1. Fill out the registration form.
Solution Provider: and work with your seller to get your delegated access keys.
Supplier or Drop Ship Vendor:
Marketplace Sellers: login to the seller center to get your Client ID and Client Secret.
Content Service Providers: send an email to:
2. You will receive your portal login credentials after registration.
3. Login to the Developer Portal to get your API keys.
How do I integrate my application with the platform?
Integrate Your Application with Item Management APIs

Use the API Explorer page to test the APIs. Integrate your application with the item management platform by calling the item management APIs.
For setting up an item, use the provided XSDs to build an XML payload to ingest item feeds.

How can I test out my APIs? Do you have a test environment?

Yes! Use Walmart API Sandbox

The Walmart API Sandbox provides an environment to test Walmart APIs to ensure a successful integration and production launch. The Sandbox is only for backend testing of APIs and there is not an option to view or test on This environment uses test-only elements and simulated responses (based on mock data) and calls to applications in realtime.

All URLs, Endpoints, Users, Items, Orders, and currency/funds within the Sandbox are for testing purposes only. This environment provides production simulation, debugging, reports and ability to monitor API behavior before moving to production.

See what's new

New growth opportunities for sellers: Top Trending Items API and Unpublished Items API

To grow your business, we just launched new Insights Management APIs to increase your catalog offerings. Add best selling items or republish items that went unpublished. Find out key insights so you can take action and update your offerings: Top selling items at Walmart during the holiday season for each department or dept. category Find out reasons […]

New Promotions Report (BETA) for Marketplace Sellers

We have launched a new Promotions Report (BETA) to provide data of your current and future promotions. This report will give you a snapshot of your Activated, Deactivated, Updated or Created promotions. Use type=promo in the Reports API URL to download the promotions report. For more details about the Promotions Report, see Generate a Promotions Report.

DSV: Update cost for your items with Cost API (BETA)

There is a new Drop-ship Vendor API that you can use to update cost for your items in bulk. You can specify cost details, including cost per unit, amount, and currency, as well as the distributor for your item. For details about how to apply for approval to use the Cost API, see Request approval […]

New Developer Portal version 2.0

We are excited to announce the next generation Walmart Developer Portal v2.0! The portal is a completely new platform, with a new user interface that separates API References, and now includes how-to guides for each API. The API Key management system is more secure, and has a more robust user interface to create separate keys […]

New Item Spec v4.0 for Marketplace Sellers

To make it easier and faster for sellers to set up and maintain items, we created a new Item Spec v4.0. This new spec is a complete overhaul of the Item Spec v3.2, that modernizes the Walmart Global Data Model with over 250 new and improved attributes, and better organization to make your products easy for buyers to discover in searches […]

GET item improvement: search seller’s catalog for item by GTIN

We have made improvements to GET an Item API. You can now fetch an item in your catalog using various identifiers including GTIN, UPC, EAN, ISBN, or Item_ID, in addition to SKU. This helps in troubleshooting SKU/GTIN mismatches in your catalog.  For more information about how to use GET an Item API, see Search seller’s catalog for an item.