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ShipStation shipping API: developer tools for building scalable fulfillment
ShipStation’s RESTful API gives development teams direct access to order management, label generation, rate shopping, and tracking—without building shipping infrastructure from scratch. Connect your ERP, OMS, ecommerce platform, or warehouse system once and manage everything through a single, documented API. Built for teams that need reliability and flexibility at the same time.
One API. Every shipping workflow your team needs.
Build once, then ship at speed. Use our APIs and event hooks to sync data, automate decisions, and keep teams aligned across order management, fulfillment, and customer updates.
Put shipping into your own workflows
Bring your own UI, rules, and business logic. With developer shipping tools built around an ecommerce API integration mindset, you can pull orders, create shipments, and print labels without forcing your team into extra clicks. Take a shipping automation API approach to tag orders, route work, and keep exceptions visible.
Keep systems synced without constant polling
Shipping changes fast. Your apps should react fast too. Use webhook shipping notifications to push shipment and tracking updates into your ERP, support desk, or customer comms flow. You’ll spend less time chasing status and more time shipping clean, accurate orders.
Scale across carriers, channels, and locations
When volume spikes, the work can’t double. Use a multi-carrier shipping API pattern to rate shop, buy labels, and push tracking back to channels like Shopify, Amazon, eBay, Etsy, Walmart, BigCommerce, and WooCommerce. Add warehouses, split work, and keep data consistent as you grow.
Rated #1 by Industry Leaders
Shipping API and shipping integration API building blocks you can ship with
REST API shipping endpoints for orders, rates, labels, and inventory
Use our fulfillment API and order management API capabilities to move data in and out of ShipStation without manual work. Create shipments, generate labels, and retrieve rates for supported services. You can also connect carrier accounts and rate shop across UPS®, USPS®, FedEx®, DHL Express, and GlobalPost™ from one flow, then push tracking back to the source order.
Shipping integration API docs that get you to a working request fast
You shouldn’t have to guess payload shapes or hunt for examples. We keep centralized references, guides, and request and response samples so you can go from auth to real calls quickly. You can work in V1 or V2, depending on your needs.
Sandbox testing that won't touch live operations
Shipping edge cases are real, and production is a bad place to find them. The sandbox works just like your live account. Test order imports, labels, webhooks, and automation rules before anything goes live. That means safer releases, faster debugging, and fewer surprises at the pack station.
SDKs and client libraries that cut setup time
If you’re tired of rewriting the same auth and request code, you’re not alone. We offer SDKs and client libraries for common stacks, including Node.js, Python, Ruby, and .NET. They’re a practical way to reduce boilerplate, keep patterns consistent, and get your developer shipping platform foundation in place sooner.
Postman collections for faster ecommerce API integration
Sometimes you just need to see real JSON before you write code. Our official Postman collections let you explore endpoints, test payloads, inspect responses, and prototype custom shipping integrations with your team. They also help when you’re troubleshooting a single call and want to isolate request formatting from app logic.
Webhooks plus self-serve key management for reliable automation
Event-driven beats constant polling. ShipStation supports webhooks so your systems can react to key moments like orders imported, shipments created, shipment notifications, and tracking updates. You can also manage API access in-app by generating keys and rotating credentials. When something fails, standardized error responses and troubleshooting guidance help you build smarter retries and alerts.