Developer Portal – Walmart Developer Portal

Important Security Update: TLS 1.0 and 1.1 will no longer be supported for API requests starting December 29, 2024. To ensure continued secure access to our REST APIs, please use TLS 1.2 or later.

Marketplace Partners

Marketplace Partner sellers can manage items, orders, prices, inventory, and more with Marketplace APIs.

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1P Suppliers

Walmart 1P Suppliers (DSV, Warehouse, and Import) sell their items directly to Walmart to retail. Suppliers can manage their items, orders, inventory and more with our Supplier APIs.

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Walmart - Advertising Partners

Advertising Partners can carry out ads campaign management, optimization and retrieve on-demand performance metrics for Advertisers (Sellers, and Suppliers) with Walmart Connect’s Ads APIs.

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SAM's - Advertising Partners

Offers campaign management and best optimization capabilities for Advertisers. Also provides flexible access to on-demand performance reports and guideline on the user onboarding.

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WCT Clients and Partners

Walmart Commerce Technologies (WCT) provides Store Assist, Ship From Store, Marketplace Orders Hub, and Route Optimization for client and partner management of stores, orders, and transport.

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Walmart GoLocal Clients

Local delivery partners can integrate with our APIs for orders, communications, and dispensing flows to get deliveries to their customers seamlessly.

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Transportation Carriers

Transportation carrier partners can integrate with our APIs to bid on Walmart delivery loads.

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Overview

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

For Marketplace:

Sign Up
1. Seller: Log in to the Developer Portal to get your Client ID and Client Secret.
2. Solution Provider: Apply here and work with your seller to get your delegated access keys.
After registration, you will receive your portal login credentials.
How to Log in to the Developer Portal to get your API keys.
1. From the top right, select My Account
2. Select the Login Type applicable to you.

For Walmart 1P Suppliers:

Apply to be a 1P Supplier here: Apply here
Once you have completed Supplier Registration & Onboarding you will receive your Walmart Retail-Link credentials
Log in to the Developer Portal to get your API keys.
1. From the top right, select My Account
2. Select 1P Supplier (US)

How do I integrate my application with the platform?

Integrate Your Application with Item Management APIs

Integrate your application with the item management platform by calling the item management APIs. You can find details on the available Feed Types & provided JSON Schemas to build a payload to ingest item feeds in our guides.

For Marketplace: Item Setup and Management Guide
For 1P:
- Item Setup and Management Guide
- Feed Files Available, Item submission and tracking process

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

For Marketplace:

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 Walmart.com. This environment uses test-only elements and simulated responses (based on mock data) and calls to applications in real-time.

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 the ability to monitor API behavior before moving to production.

For Walmart 1P:

Yes! We have launched the Walmart API Sandbox for 1P Suppliers.

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 Walmart.com. This environment uses test-only elements and simulated responses (based on mock data) and calls to applications in real-time.

Note: Only selected API’s, Feed Types, and Reports are currently supported in the Sandbox. See the detailed list here.

See what's new

Deprecation Notice: Price Incentives Program API Updates

The Marketplace Price Incentives team is excited to announce the launch of a new API for the updated Price Incentives program. The new endpoint lets you enroll and unenroll in Walmart-funded and Referral fee incentives and provides the status of each incentive’s active status. On June 30th, 2025, the Get Price Incentives API will be updated with new […]

New Pro Seller API available

We’re excited to announce the launch of the new API for the updated Pro Seller program. This new API delivers up-to-date insights, rewards, and your new tiered status. Starting in October, certain attributes in the existing Pro Seller API will not provide all data relevant to the new program. The existing Pro Seller API will […]

1P Suppliers: New Notification Platform in September 2024

Walmart is launching a new notification platform, designed to keep suppliers informed and connected with Walmart in real-time. The platform will introduce two new webhooks: The value of this notification platform, which sends webhooks, lies in its ability to automate communication and provide real-time updates, enabling suppliers to be more agile and responsive to Walmart’s […]

Sellers Lag Time Reports

We are thrilled to announce that we are launching a new lag time report for sellers to view configured lag times for their items. Lag time is the number of days between when an item is ordered and when it is shipped. Walmart Marketplace requires sellers to ship orders within one day or less, but […]

Items, Inventory, Orders, Returns, API Update – Preorder

On September 18, 2024, Preorder and its related information will be available across various APIs. A Preorder identifier will be introduced to help you differentiate a Preorder versus regular item across the following APIs. The new attributes are only required/available for Preorder items. Items API:Get an item API, Get all items API, and Get item […]

1P Suppliers: New Functionality for Item Management API Calls & On Request Reports in June 2024

New Releases: June 2024 Walmart is launching new functionality for the Item Management API calls in June 2024. This new API’s will allow for suppliers to continue automating workflows previously only available in Supplier One. Additionally we have refreshed all existing Item Setup and Maintenance Feedtype Specs to align with the latest standards in Supplier […]