This article lists the Linnworks API endpoints the iPaaS.com integration calls, grouped by entity. Use it as a reference for firewall allow-listing, troubleshooting, and checking whether the integration is affected when Linnworks publishes an API change.

The Linnworks API is a REST API. Requests use JSON, and most operations are sent with the POST method.

Data requests are sent to the region-specific base URL configured in your subscription's API Url setting — for example, https://eu-ext.linnworks.net/api for EU-hosted accounts. Throughout this article, [Base URL] stands for that value. Authorization is handled separately by a fixed Linnworks authorization server (see Authorization Endpoint below).

For full request and response details, see the Linnworks API documentation at https://apidocs.linnworks.net.

Finds an open order from a search term (such as an order number) so it can be retrieved by its identifier.

Retrieves pages of open orders. Used to detect new and updated orders on the polling schedule.

Retrieves the full details of one or more open orders, including line items, addresses, and totals.

Retrieves the notes attached to an order.

Sets or updates the shipping and tracking information on an order.

Retrieves a single inventory item (product) by its SKU.

Creates a new inventory item (product or variant) in Linnworks.

Updates an existing inventory item (product or variant) in Linnworks.

Retrieves the list of product categories, used to match a category name to its Linnworks category.

Retrieves the list of stock locations, used to match a location name to its Linnworks location.

Retrieves full stock item details.

Sets the stock level for a product or variant at a location.

Creates a variation group (a parent product that groups its variants).

Adds variant items to a variation group.

Retrieves the list of postal services, used to match a postal service name to its Linnworks service.

Exchanges the Application Id, Application Secret, and installation token for an access token used to authorize all subsequent data requests. This authorization server is fixed and is not region-specific.