ShipStation is a web-based software designed to help eCommerce retailers process, fulfill, and ship their orders from all the most popular marketplaces and shopping carts using all the top carriers.

Shopify powers tens of thousands of online retailers including General Electric, Amnesty International, CrossFit, Tesla Motors, Encyclopaedia Britannica, Foo Fighters, GitHub, and more. Our platform allows users to easily and quickly create their own online store without all the technical work involved in developing their own website, or the huge expense of having someone else build it. Shopify lets merchants manage all aspects of their shops: uploading products, changing the design, accepting credit card orders, and viewing their incoming orders and completed transactions.

Get labels and discounted rates from 14+ domestic and international carriers using our shipping API or apps.

Now it's faster and easier than ever to verify addresses on your website. Help your customers provide valid address data by verifying it in real-time with our API. Display multiple matches if the address is ambiguous, and alert them when the address is invalid. Your shipments will be cheaper and arrive faster, and your customers will be satisfied knowing that their addresses were submitted correctly the first time.

Postmen is the simple shipping APIs to calculate rates, print labels and submit manifests, supporting UPS API, FedEx API, USPS API, DHL API and multiple couriers.