Verestro Paytool Web SDK lets you embed secure card payments in your website with a small, focused API available via the global object below:

window.Paytool;

Features:

• Secure, embeddable card form you can style and control: embedCardForm()
• Type guard to handle SDK-originated errors: isEmbedError()

Requirements

• Your website domain must be allowlisted to load the SDK and hosted pages.
• Always create transactions on your backend; never charge purely on the client.

Install the SDK

Add the script to your page and choose the environment that matches your phase:

<!-- Production -->
<script src="https://paytool.verestro.com/v1/paytool.js"></script>

<!-- Staging (test, no real charges) -->
<script src="https://paytool.verestro.dev/v1/paytool.js"></script>

Environment notes

• Staging lets you test flows without real charges. Use separate credentials.
• Your website domain must be allowlisted in both environments to load the SDK and hosted iframes.