Accept Kaspa (KAS) cryptocurrency payments in WooCommerce with automatic order confirmation and real-time verification.

jorbach

<p>Kaspa Payments Gateway for WooCommerce enables your WooCommerce store to accept Kaspa (KAS) cryptocurrency payments. Built with security and simplicity in mind, using KPUB (Extended Public Key) watch-only wallets for non-custodial payment processing.</p>
<p><strong>Important</strong>: This plugin is not officially affiliated with, endorsed by, or connected to Kaspa, WooCommerce, or their respective owners. Kaspa is a decentralized cryptocurrency, and this plugin is an independent third-party integration.</p>
<p><strong>Note</strong>: This is an initial release. We recommend testing on a staging site before deploying to production.</p>
<h4>Key Features</h4>
<ul>
<li><strong>KPUB Watch-Only Wallet</strong>: Secure, non-custodial payment processing. No private keys stored.</li>
<li><strong>Automatic Payment Detection</strong>: Real-time payment monitoring via Kaspa API</li>
<li><strong>Unique Address Per Order</strong>: Each order gets a dedicated payment address for better tracking</li>
<li><strong>Real-Time Exchange Rates</strong>: Automatic USD to KAS conversion using CoinGecko API</li>
<li><strong>QR Code Support</strong>: Easy payment scanning with QR codes</li>
<li><strong>Classic & Block Checkout</strong>: Supports both WooCommerce checkout styles</li>
<li><strong>Sequential Address Generation</strong>: Addresses visible in Kaspium wallet automatically</li>
<li><strong>Live Price Updates</strong>: Payment amounts update with exchange rate fluctuations</li>
</ul>
<h4>Security</h4>
<ul>
<li>No private keys or mnemonics stored</li>
<li>KPUB (Extended Public Key) only – safe to store</li>
<li>All user input sanitized</li>
<li>WordPress nonce verification on all AJAX requests</li>
<li>Capability checks for admin functions</li>
</ul>
<h4>Requirements</h4>
<ul>
<li>WordPress 5.0 or higher</li>
<li>WooCommerce 3.0 or higher</li>
<li>PHP 7.4 or higher</li>
<li>Kaspa wallet (Kaspium recommended) with KPUB export capability</li>
</ul>
<h4>Installation</h4>
<ol>
<li>Upload the plugin files to <code>/wp-content/plugins/kaspa-payments-gateway-woocommerce/</code></li>
<li>Activate the plugin through the ‘Plugins’ menu in WordPress</li>
<li>Navigate to WooCommerce <span aria-hidden="true" class="wp-exclude-emoji">→</span> Settings <span aria-hidden="true" class="wp-exclude-emoji">→</span> Payments</li>
<li>Click on “Kaspa Payments Gateway” to configure</li>
<li>Export your KPUB from your Kaspium wallet</li>
<li>Go to WordPress Admin <span aria-hidden="true" class="wp-exclude-emoji">→</span> Kaspa <span aria-hidden="true" class="wp-exclude-emoji">→</span> Wallet Setup</li>
<li>Import your KPUB to enable payments</li>
</ol>
<h4>Configuration</h4>
<ol>
<li>
<p><strong>Export KPUB from Kaspium</strong>:</p>
<ul>
<li>Open your Kaspium wallet</li>
<li>Navigate to Settings or Export</li>
<li>Copy your Extended Public Key (KPUB) – starts with “kpub”</li>
</ul>
</li>
<li>
<p><strong>Configure Wallet in WordPress</strong>:</p>
<ul>
<li>Go to WordPress Admin <span aria-hidden="true" class="wp-exclude-emoji">→</span> Kaspa <span aria-hidden="true" class="wp-exclude-emoji">→</span> Wallet Setup</li>
<li>Paste your KPUB</li>
<li>Click “Validate & Import KPUB”</li>
</ul>
</li>
<li>
<p><strong>Enable Payment Method</strong>:</p>
<ul>
<li>Go to WooCommerce <span aria-hidden="true" class="wp-exclude-emoji">→</span> Settings <span aria-hidden="true" class="wp-exclude-emoji">→</span> Payments</li>
<li>Enable “Kaspa Payments”</li>
<li>Save changes</li>
</ul>
</li>
</ol>
<h4>Frequently Asked Questions</h4>
<h4>Does this store my private keys?</h4>
<p>No. This plugin uses KPUB (Extended Public Key) only. Private keys and mnemonics are never stored or required.</p>
<h4>Can I spend from addresses generated by this plugin?</h4>
<p>Yes, but not through WordPress. This plugin is watch-only. To spend funds, use your wallet software (Kaspium) where you control the private keys.</p>
<h4>How does payment detection work?</h4>
<p>The plugin polls the Kaspa API to check if funds have been received at the order payment address. When the required amount is detected, the order is automatically completed.</p>
<h4>What happens if the exchange rate changes?</h4>
<p>Payment amounts update in real-time based on current exchange rates. Customers see the latest KAS amount on the checkout page.</p>
<h4>Will addresses appear in my Kaspium wallet?</h4>
<p>Yes. Addresses are generated sequentially starting from index 0, so they automatically appear in Kaspium wallets which scan low indices.</p>
<h3>External Services</h3>
<p>This plugin connects to the following third-party services to provide its functionality:</p>
<p><strong>Kaspa API (https://api.kaspa.org)</strong><br />
* <strong>Purpose</strong>: Used to check payment addresses for received funds and verify transactions on the Kaspa blockchain.<br />
* <strong>Data Sent</strong>: Payment addresses (public blockchain addresses only, no private keys or personal data).<br />
* <strong>When</strong>: Automatically when checking order payment status and during periodic payment verification.<br />
* <strong>Terms of Service</strong>: https://api.kaspa.org (Kaspa is a decentralized cryptocurrency network)<br />
* <strong>Privacy Policy</strong>: N/A (public blockchain data only)</p>
<p><strong>CoinGecko API (https://api.coingecko.com)</strong><br />
* <strong>Purpose</strong>: Provides real-time exchange rates to convert USD order amounts to Kaspa (KAS) cryptocurrency.<br />
* <strong>Data Sent</strong>: API request for Kaspa/USD exchange rate (no user data).<br />
* <strong>When</strong>: When displaying payment amounts on checkout pages and updating live prices.<br />
* <strong>Terms of Service</strong>: https://www.coingecko.com/en/terms<br />
* <strong>Privacy Policy</strong>: https://www.coingecko.com/en/privacy</p>
<p><strong>QR Server API (https://api.qrserver.com)</strong><br />
* <strong>Purpose</strong>: Generates QR codes for payment addresses to make it easier for customers to scan and pay.<br />
* <strong>Data Sent</strong>: Payment address and amount (public blockchain data only, no personal information).<br />
* <strong>When</strong>: When displaying the payment QR code on checkout and order pages.<br />
* <strong>Terms of Service</strong>: https://goqr.me/api/terms-of-service/<br />
* <strong>Privacy Policy</strong>: https://goqr.me/api/privacy-policy/</p>
<h4>Changelog</h4>
<h4>1.0.0</h4>
<ul>
<li>Initial release</li>
<li>KPUB watch-only wallet support</li>
<li>Sequential address generation starting from index 0</li>
<li>Real-time payment detection via Kaspa API</li>
<li>Live exchange rate updates via CoinGecko</li>
<li>QR code payment support</li>
<li>Classic and block checkout compatibility</li>
<li>Automatic order completion on payment detection</li>
</ul>


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