n-ShipStation Has a Real API. Most of What People Build Against It Still Needs Writing.
ShipStation's REST API covers orders, shipments, labels, carriers, and warehouses, with webhook support so your systems can react the moment a label prints or a tracking status changes. You get a test and production key from your account, plus the documentation to go with them. Turning that into something that runs reliably in production, and reaching the handful of things the API genuinely can't touch, is where we come in.
What the ShipStation API actually covers
The documented endpoints handle what you'd expect from an order management system: pulling and creating orders, generating and voiding shipping labels, reading rate quotes across your connected carriers, and managing products, customers, and warehouse locations. Webhooks fire on events like a shipment going out or a tracking status updating, so an integration can react immediately instead of polling the API on a schedule.
You'll find separate test and production API keys under Account Settings, and the docs cover authentication, rate limits, and the shape of every response. For a business already running orders through ShipStation's dashboard, the API is how you reach past the built-in automation rules and connect a workflow ShipStation never anticipated.
What it doesn't expose is ShipStation's own automation rule engine. You can read and write the orders and shipments those rules act on, but configuring which rule fires on which condition still happens through the dashboard UI, not an endpoint. When a business needs that logic managed or replicated at scale, scripted browser automation against the dashboard itself is sometimes the more reliable path than fighting an API that was never built for that job.
Where EDI fits, and where it doesn't
ShipStation doesn't speak EDI natively. If a big-box retailer requires a formatted purchase order or an advance ship notice before they'll accept freight, that document has to come from somewhere else: a dedicated EDI provider, a custom translation layer, or both, feeding into ShipStation through its API.
That's a different kind of gap than the automation-rule one above. It isn't that ShipStation hides the feature behind a UI; EDI was simply never part of what ShipStation does. We build the translation layer that turns a trading partner's EDI document into an order ShipStation can process, and turns a ShipStation shipment back into the notice a retailer expects.
What we build against the ShipStation API
Webhook-driven order and shipment sync
A shipment update fires the moment ShipStation knows about it, pushed into whatever system actually needs to see it, instead of a nightly export catching up hours later.
EDI translation for retailer requirements
Purchase orders and advance ship notices get mapped between a retailer's EDI format and ShipStation's own order structure, so a trading-partner requirement doesn't become a manual data-entry job.
Not sure if something's possible through the API or needs a different approach?
Tell us what you're trying to move in or out of ShipStation. We'll tell you straight whether the documented API covers it, or whether it's one of the handful of things that needs a workaround.
Building something against ShipStation's API, or stuck on a workflow its dashboard rules can't reach?
Describe what needs to happen and when, and we'll scope whether the API gets you there directly or whether it needs custom logic ShipStation doesn't ship with. ShipStation is one system in a much bigger stack, and the same approach applies anywhere else in your business that still runs on manual steps.
Let's talk