Plugin
Updated
Westpac PayWay API Gateway
Westpac PayWay API Gateway by Tyson Armstrong is a WooCommerce plugin that connects your store to the Westpac PayWay API. Customers enter their credit card details and pay on your own checkout page, with no redirect to an external hosted payment page.
- Version
- 1.6.5
- Released
- Mar 28, 2026
- Developer
- WooCommerce
- Type
- WordPress plugin
- Requires
- WooCommerce
- Licence
- GPL
- Included in
- Every plan, or $7.99 a year on its own
What’s new in Westpac PayWay API Gateway 1.6.5
Version 1.6.5 · Mar 28, 2026
Latest
- ImprovedHPOS compatibility uses order meta methods instead of post meta
- FixedFix IP address detection to use WC_Geolocation
- FixedFix external IP lookup to use HTTPS
- FixedFix missing break in payment error handling (case 2 fall-through)
- ImprovedReplace deprecated woocommerce_clean() with wc_clean()
What it does
Many payment gateways send shoppers away to a hosted page to finish paying, which breaks the flow of checkout and can make a store feel less familiar at the moment it matters. This plugin is built for Australian merchants who bank with Westpac and want card payments handled directly inside their WooCommerce checkout. It talks to the Westpac PayWay API in the background, so the customer stays on your site from cart to order confirmation.
The gateway slots into the standard WooCommerce checkout as another payment method. Visa and Mastercard work by default, and American Express, Diners Club and JCB can be added once Westpac enables them on your account. It is designed to meet PCI data security standards when your site runs on a compliant server. It also works with WooCommerce order storage that uses order meta methods, and it uses WooCommerce geolocation to detect customer IP addresses.
Best for
- Australian WooCommerce stores with a Westpac merchant account
- Merchants who want card payments without leaving the checkout
- Developers building WooCommerce sites for Westpac business clients
Features
On-site card payments
Customers pay by credit card directly on your checkout page through the Westpac PayWay API, without being redirected to an external hosted payment page.
Visa and Mastercard by default
Visa and Mastercard payments are supported out of the box, covering the card types most shoppers use.
Optional extra card types
American Express, Diners Club and JCB can be accepted once Westpac activates them on your merchant account.
PCI compliance ready
The gateway is designed to meet Payment Card Industry Data Security Standards when your store is hosted on a PCI compliant server.
Standard WooCommerce checkout
The plugin fits into the normal WooCommerce checkout flow as a payment method, so your existing checkout layout stays in place.
Order storage compatibility
Payment data is saved using WooCommerce order meta methods instead of post meta, which suits stores using WooCommerce high performance order storage.
Customer IP detection
Customer IP addresses are detected through WooCommerce geolocation, and any external IP lookup is made over HTTPS.
Payment error handling
The gateway handles payment errors returned by Westpac PayWay so failed transactions are reported correctly during checkout.
Westpac PayWay API Gateway older versions
- 1.6.4Sep 28, 20251 new, 3 improvements
- 1.6.3Feb 23, 20241 new
- 1.6.2Apr 18, 20231 new
Members and buyers of this product can download older versions.
Questions about Westpac PayWay API Gateway
Do my customers get sent to a Westpac page to pay?
No. The plugin uses the Westpac PayWay API, so customers enter their card details and complete payment on your own WooCommerce checkout page instead of being redirected to an external hosted page.
Which credit cards can I accept?
Visa and Mastercard are supported by default. You can also accept American Express, Diners Club and JCB, but Westpac needs to activate those card types on your merchant account first.
Is this plugin PCI compliant?
It is designed to meet Payment Card Industry Data Security Standards when your site is hosted on a compliant server. Because card details are taken on your site, your hosting setup plays a part in overall compliance.
Does it require WooCommerce?
Yes. It is a WooCommerce payment gateway and works inside the standard WooCommerce checkout. It also supports WooCommerce order storage that uses order meta methods.
Is Westpac PayWay API Gateway free?
The code of Westpac PayWay API Gateway is licensed under the GPL, so anyone may use, change and share it. GPL Feast is a paid service: a plan or a single purchase gives you the download and automatic updates. The developer's own support, licence key and online services are not included.
Which version of Westpac PayWay API Gateway is this?
Version 1.6.5, released Mar 28, 2026. New versions appear here when the developer publishes them, and members get them as automatic updates.
How do I update Westpac PayWay API Gateway?
Install the free GPL Feast Updater on your site and connect it with your API key. It installs new versions of Westpac PayWay API Gateway automatically and keeps a backup, so you can roll back.
What does Westpac PayWay API Gateway need?
Westpac PayWay API Gateway needs WooCommerce installed and active.
More from WooCommerce
