Our APIs

What is an API? An Application Programming Interface (API) is a set of programming instructions and standards for accessing a web application or tool. An API enables applications to talk to each other without any user knowledge or intervention. For example, when you purchase a product online and enter your credit card information, the retailer's website uses an API to send your credit card information to a remote application that verifies whether your information is correct.

Postage Assessment Calculator and Postcode Search

Postage Assessment Calculator and Postcode Search

Integrate this API into your website to enable your customers to calculate the current costs of sending letters or parcels within Australia and overseas.

Delivery Choice Enablement

Delivery Choices API suite

Integrate these APIs into your current checkout or ordering system to offer your customers delivery choices based on current availability in the destination postcode.


SecurePay payment solutions

Learn more about how SecurePay can host your payment solution.

Post Pay


Provides added protection for your customers, giving them more confidence to shop with you.