Integrate with Walmart Marketplace APIs

Walmart Marketplace APIs support your eCommerce business by supplying essential data that enables you to make well-informed decisions. The following integration guides show you how to use the Marketplace APIs to effectively run your eCommerce business on Walmart.com and some API integration options.

Catalog management APIs

List and sell your items

Leverage the Catalog management APIs to onboard your product listings, keep content up to date, and ensure inventory accuracy.

Feeds - Submit large volumes of items, pricing, and inventory data in batch using asynchronous feeds. Ideal for initial setup or bulk updates. Refer to the Feeds API guide.
Items - Create, update, and retrieve item-level details including titles, descriptions, category mapping, and rich content. Refer to the Item Management API guide.
Inventory - Update and manage item stock quantities in real-time or at scheduled intervals to reflect warehouse availability. Refer to the Inventory API guide.

Order management APIs

Manage your eCommerce logistics

Use the Order management APIs to manage and process orders for items sold on Walmart; from order retrieval and fulfillment to handling returns and disputes.

Orders - Retrieve order details, acknowledge orders, update statuses, and track the fulfillment lifecycle. Refer to the Orders API Guide.
Shipping - Confirm shipment of orders, provide tracking information, and ensure compliance with SLA requirements. Refer to the Shipping API Guide.
Returns - Retrieve and respond to return requests, issue refunds, and track return status. Refer to the Returns API Guide.
Disputes - Manage disputes related to returns or order issues, including reviewing cases and submitting responses. Refer to the Disputes API Guide.

Pricing APIs

Set up your prices and promotions

Use the Pricing and Promotional Price management APIs to set and manage the price and promotional price for an item. Refer to the Pricing and Promotional Price Management API Guide.

Repricer - Automate price adjustments for items in your catalog. Based on the rules you set, prices are dynamically adjusted based on triggers, such as winning Buy Box offers and/or external site prices.

Pricing - Update item pricing for a single item or items in bulk.
Incentives – Use price incentives like Walmart-funded and Reduced Referral fee incentives for eligible Marketplace items to create competitive pricing.
Promotions – Use promotional pricing to offer reduced prices on items for a limited time to attract more customers and drive sales.

Fulfillment APIs

Have Walmart fulfill your orders

Streamline order fulfillment using the Walmart Fulfillment Services (WFS) APIs. With the WFS APIs, you can send inventory to Walmart fulfillment centers, track shipments, and manage orders—all in one place. Take advantage of fast, reliable delivery options like 2-day shipping to boost customer satisfaction and sales. The WFS APIs support seamless integration with your systems, so you can scale fulfillment with ease.

Walmart’s Multichannel Solution (MCS) is an extension of WFS that ensures quality, scale, and efficiency for a seller to grow a successful business. Refer to the Walmart Fulfillment Services (WFS) API guide.

Analytics & Insights APIs

Optimize your business with Analytics & Insights

Optimize your business performance with Walmart’s Analytics & Insights APIs, designed to help you make data-driven decisions. These APIs provide access to critical reports and metrics across advertising, sales, and product performance:

On-Request Reports - Request and retrieve sales, inventory, and performance reports programmatically. Refer to the On-Request Reports API Guide.
Seller & Product Insights - Monitor seller performance metrics such as order defect rate, cancellation rate, and on-time delivery. Track item-level metrics like views, add-to-cart rates, and buy box win rates to optimize listings. Refer to the Insights API Guide.

Settings and Utilities APIs

Configure your eCommerce settings

Configure your eCommerce operations with Settings & Utilities APIs, designed to help you manage key backend functions that support smooth order processing and fulfillment. These APIs let you define shipping methods, set up fulfillment preferences, and manage alerts.

Shipping and Fulfillment Settings: Set up shipping methods, transit times, and fulfillment configurations to ensure timely and reliable order delivery. Refer to the Shipping and fulfillment settings API guide.
Utilities: Access tools to validate and manage essential information like item setup, inventory, and time zones. Refer to the Utilities API Guide.
Notifications: Configure notification settings to receive timely updates on order status, inventory changes, and system events. Refer to the Notifications API Guide.