An application programming interface (API) is a tool which developers can use to build software applications.
Developers can use the Merchant Fulfillment API to build applications that let sellers purchase shipping using Amazon's Buy Shipping.
If you want to buy shipping from your seller account, see Buy shipping through Seller Central.
With the Merchant Fulfillment API, you can:
Access Buy Shipping through the Amazon Marketplace Web Service (Amazon MWS).
Manage your shipping with a shipping integrator that has adopted the Merchant Fulfillment API.
Purchase shipping services directly through the Merchant Fulfillment API.
Go to the MWS documentation
for how to fulfill orders for each marketplace via the MWS API
Terms and conditions
Before you can use Buy Shipping, you must review and accept Amazon's terms and conditions and the terms and conditions of carriers that you want to buy shipping from.
To review and accept the terms and conditions:
In your seller account, go to Manage Shipping Services.
Read Amazon's terms and conditions for this service and the terms and conditions of each carrier, and click the I agree check boxes to accept them.
Important: If you don't agree to the terms and conditions for a particular carrier, its shipping services won't be available to you.
Developers can learn more about building applications at Amazon MWS.
If you use integrators to manage your shipping, you have the following options:
Several leading shipping integrators are working to adopt the Merchant Fulfillment API. Contact your integrator to find out their adoption timelines.
If you are enrolled in Seller Fulfilled Prime, you can also work with an existing shipping integrator who has adopted the API for fulfilling your Prime orders:
If you are shipping out of country from China, you can also work with an existing cross-border Enterprise Resource Planning (ERP) who has adopted API for fulfilling your orders: