Update We’ve released an early-access version of ShipStation API V2, which includes highly requested features like batch shipments, manifests, and return labels.

Dec 8, 2025 · ShipStation recently launched the V2 API, a new version that includes Shipping and Inventory endpoints. The V2 API is a great way to get data directly to and from ShipStation, …

Developer Tools ShipStation’s API client libraries and SDKs make it easy to work with your language or platform of choice.

Build your own shipping workflows with ShipStation’s API. Rate, label, track, and manage orders across carriers with full developer flexibility.

Welcome to ShipStation API V2 documentation! ShipStation API V2 includes several highly requested capabilities not currently available in our V1 version, including batch labels, return …

If the orderKey is specified, ShipStation will attempt to locate the order with the specified orderKey. If found, the existing order with that key will be updated.

Use https://ssapi.shipstation.com/ as the Host URL for your ShipStation API V1 Server and Base URL that you will put in Postman or your preferred platform. Authentication ShipStation API V1 …

With webhooks, ShipStation will automatically contact your servers when the stage changes. This can include parcel tracking events, notification when a batch operation completes, and more.

Orders that have been marked as Shipped either through the UI or the API will not appear as they are considered external shipments. To include every shipment's associated shipmentItems in …

Learn how to retrieve an individual order's information using the ShipStation developer API.