Openpay Payment Method – API Reference

Welcome to the Openpay API reference documentation. The Openpay API conforms to the REST architectural framework. Our APIs have resource-oriented URLs, accepts JSON-encoded request bodies and returns JSON-encoded responses.

It uses Basic Auth for authentication and uses standard HTTP response codes.

Openpay JavaScript Widget for Custom Integration

Widgets shows on the frontend of your website how Openpay is a flexible, interest-free payment method that gives your customer an option to pay weekly or fortnightly, over available months.

Product Page Widget

Displayed on the Product Detail Page

Javascript Product Page Widget

Openpay Assets

By adding all informative assets helps promote the use of Openpay throughout your site or store.


Displayed on the Home, Category or Product Listing Page.


Landing page

Explains your customers what Openpay is, how it works to make their purchase easier.

Landing Page

Quick Link & Trust Logo

Displayed on the footer is a trust logo and an Openpay link opening the landing page.