Online Checkout

Card Not Present › Online Checkout

Accept card payments through your website — requires developer integration

The TWPayz Online Checkout is a hosted payment page integrated into your website checkout flow. Your customer selects their items, clicks Pay, and is directed to a secure TWPayz-hosted payment page. After paying, they return to your site. No sensitive card data ever touches your server.

Developer integration required. Online Checkout requires a technical setup by your web developer. Full API and integration documentation is available at document.twpayz.com/integration/standard-checkout.php. This page provides a business-level overview only.

How It Works

Customer on
your website

→

Clicks Pay
on checkout

→

Redirected to
TWPayz page

→

Pays securely
(3DS if required)

→

Returned to
your site

Step	What happens
1. Initiate payment	Your website sends a payment request to the TWPayz API with order details and amount.
2. Hosted checkout displayed	Customer sees the TWPayz-hosted payment page. Your business name and order details are pre-filled.
3. Customer enters card details	Card data is entered directly on the TWPayz page — it never passes through your server.
4. 3D Secure (if required)	3D Secure v2 authentication handled automatically for cards that require it. Customer may be prompted by their bank.
5. Payment result	TWPayz processes and returns an authorisation result.
6. Redirect	Customer sent to your success URL (approved) or failure URL (declined) — configured by your developer.
7. Webhook notification	TWPayz sends a server-to-server notification to your backend with the final payment result for order fulfilment.

Supported Payment Methods on Checkout

Visa Mastercard American Express Apple Pay Google Pay Pay by Bank

3D Secure v2 is included and handled automatically.

Integration Options

Type	Description	Best for
Hosted Redirect	Customer redirected to TWPayz-hosted page; returns to your site on completion. Simplest integration.	Most businesses — minimal developer time.
REST API	Server-to-server API — full control over checkout flow and UI. TWPayz handles processing.	Custom checkout experiences, complex workflows.
Mobile SDK	Native iOS and Android SDKs for in-app payments.	Mobile app integrations.
WooCommerce Plugin	Ready-to-install plugin for WordPress / WooCommerce stores.	WordPress eCommerce sites — no custom code needed.

Full technical documentation, API reference, and integration guides for all methods are available at: document.twpayz.com/integration/standard-checkout.php