You can use the Item management APIs to access information about individual items alongside Insight APIs to get analytics related to those items, including trends, usage patterns, or performance metrics.

Use these APIs to get information on your existing items in the catalog.

Search for all items in the seller's catalog

The All Items API allows you to retrieve a complete list of items from the seller's catalog, supporting pagination through nextCursor or offset and limit parameters. Each item response includes an isDuplicate field to indicate whether an item is a duplicate. You can optionally include the showDuplicateItemInfo parameter to receive additional details about duplicate items, such as a destinationItem property that provides relevant information.

Run https://marketplace.walmartapis.com/v3/items API request to search for an item in the catalog.
You’ll see the total items available, their product name, product type, SKU details, published status, lifecycle, and variant information.
To search for a product in the catalog, call GET /v3/items/walmart/search, and specify query parameters:
- query for a keyword search
- upc for Universal Product Code search, or
- gtin for Global Trade Item Number search

Example: Search by keyword

For example, to search for a keyword, enter text (for example, iPad or Fitbit) with the query parameter:
GET https://marketplace.walmartapis.com/v3/items/walmart/search?query=ipad

Example: Search by UPC

To search by UPC code, specify the number with the upc parameter:
GET https://marketplace.walmartapis.com/v3/items/walmart/search?upc=911138034047

Upon success, the response returns all values for the item in JSON format.

Search for an item in the seller's catalog

The An item API allows you to retrieve detailed information about a specific item from the seller's catalog. You must pass productId as a path parameter and partnerId as a query parameter. The response includes an isDuplicate field, indicating whether the item is a duplicate (true or false). This field will not be available if the productIdType is SKU.

Run the https://marketplace.walmartapis.com/v3/items/{id} API request to search a seller’s catalog by seller’s Item_ID, GTIN, UPC, EAN, ISBN, or SKU.
To search for a seller’s item by specific product code, call GET v3/items resource, and specify the productIdType query parameter set to ITEM_ID, GTIN, UPC, ISBN, EAN, or SKU.
You must specify at least one value for the productIdType query parameter (for example, productIdType=GTIN), or else the API returns SKU by default.
If there are more than one item in the catalog, the search returns the first 20 items in the response.

By default, this API will only respond with 20 results matching your filtering parameters, even though there would be more matches to your query. You can increase this by setting the limit parameter.

Additionally, you can use the information provided in the relatedQueries response parameter to run a new search for similar items.

Get an item by SKU

You can pass the SKU code directly as the URL parameter, ID:
https://marketplace.walmartapis.com/v3/items/ {ID}
For example, to get the SKU code 30348_KFTest, specify it directly to the items resource as a URL parameter:
https://marketplace.walmartapis.com/v3/items/30348_KFTest

Get an item by specific codes

To get other item codes, specify the query parameter productIdType set to either GTIN, UPC, EAN, ISBN, SKU, or ITEM_ID and provide the numeric code after the /items resource in the URL.

Upon success, the response returns all values for the item in JSON format.

Search for all items in the seller's catalog

Example: Search by keyword

Example: Search by UPC

Search for an item in the seller's catalog

Get an item by SKU

Get an item by specific codes

Example: get an item by GTIN

Example: get an item by UPC

Example: get an item by EAN

Example: get an item by ISBN

Example: get an item by ITEM_ID

Example: get an item by SKU