Automate your multi-vendor marketplace

Onport is an Ecommerce Marketplace and Dropshipping Platform powering companies to leverage the marketplace and dropshipping model with next-generation composable technology and future-proof automation, allowing Retailers, Brands and pure Marketplaces to create, set up, launch, and scale their online business. It uses a modular approach to leverage pre-existing infrastructure to facilitate faster product development without limitations, and was designed to streamline the key areas of backend marketplace operations and tackle the most common pain points of any ecommerce business.

Onport logo

Date Founded



London, UK

Shipping company type

Ecommerce Tools

Number of customers



With Onport, import product catalogs, send orders, and sync tracking information, seamlessly. Also, access a diverse range of integrated solutions, from frontend platforms to payment solutions, and a vast API library to manage your marketplace operations from a single platform.

Inventory syncing

Automatically split an order into the different fulfillment flows between Vendors, In-House, or 3PL.

Order routing

Define a fully flexible network of Carriers, customer shipping rates, and shipping cost allocation.


Automatically calculate commission rates for all items sold and import cost prices in batches from vendors.


Seamlessly upload items to the Marketplace, while keeping inventory levels and pricing in sync.

Additional EasyPost partners

Acumatica logo
WeSupply logo
inFlow Inventory Logo logo
XPSship logo
Insight Works logo
Loop logo
ReturnLogic logo
PrattBox logo
SKULabs logo
SmartShyp logo
Linnworks logo
Bandzoogle logo
And More

Small business shipping rates

Through EasyPost, small businesses access USPS Commercial Pricing and UPS marketplace rates for domestic and international shipments. Spend less on shipping with trusted carriers using our Create Label interface.

Flexible Shipping APIs for any online merchant

EasyPost's best-in-class Shipping APIs provide end-to-end flexibility and more control over parcel shipping and logistics processes for:

  • Ecommerce retailers
  • Fulfillment centers
  • Marketplaces
  • Enterprises
  • And more!

Save time with simple shipping

Save up to 88% on retail rates using our modern Shipping API, Tracking API, and Address Verification API for USPS, FedEx, UPS, DHL, and many more.