PayzCore

PayzCore is a blockchain monitoring service, not a payment processor. All payments are sent directly to your own wallet addresses. PayzCore never holds, transfers, or has access to your funds.
<ul>
<li>Your wallets, your funds — You provide your own wallet (HD xPub or static addresses). Customers pay directly to your addresses.</li>
<li>Read-only monitoring — PayzCore watches the blockchain for incoming transactions and sends webhook notifications. That’s it.</li>
<li>Protection Key security — Sensitive operations like wallet management, address changes, and API key regeneration require a Protection Key that only you set. PayzCore cannot perform these actions without your authorization.</li>
<li>Your responsibility — You are responsible for securing your own wallets and private keys. PayzCore provides monitoring and notification only.</li>
</ul>
How It Works
PayzCore is a non-custodial blockchain transaction monitoring service. When a customer checks out, the plugin creates a monitoring request via the PayzCore API. The customer is shown a unique wallet address and QR code. PayzCore watches the blockchain for incoming transfers and sends a webhook notification when the payment is detected, automatically updating your WooCommerce order status.
Key Features
<ul>
<li>Accept USDT and USDC stablecoins</li>
<li>Multi-network support: TRC20 (Tron), BEP20 (BNB Smart Chain), ERC20 (Ethereum), Polygon, and Arbitrum</li>
<li>Non-custodial: funds go directly to your wallet, PayzCore never touches them</li>
<li>Static wallet mode: use a fixed address for all payments with customer tx hash confirmation</li>
<li>Real-time payment status polling with automatic order updates</li>
<li>Dark-themed payment instructions page with QR code and countdown timer</li>
<li>HMAC-SHA256 webhook signature verification for security</li>
<li>Automatic order completion for virtual/downloadable products</li>
<li>Blockchain explorer links in order notes (Tronscan, BSCScan, Etherscan, Polygonscan, Arbiscan)</li>
<li>WooCommerce HPOS (High-Performance Order Storage) compatible</li>
<li>Translatable with full i18n support</li>
</ul>
Static Wallet Mode
By default, PayzCore derives a unique HD wallet address for each payment. If you prefer to use a single fixed address for all payments, you can enable Static Wallet Mode:
<ol>
<li>Go to WooCommerce > Settings > Payments > PayzCore (Stablecoin)</li>
<li>Enter your wallet address in the “Static Wallet Address” field</li>
<li>Save settings</li>
</ol>
When static wallet mode is active:
<ul>
<li>All payments use the same address you configured</li>
<li>The payment amount includes a micro-offset (e.g., $50.003 instead of $50.00) to distinguish transactions</li>
<li>Customers see a notice with the exact amount to send</li>
<li>After sending payment, customers are shown a form to paste their blockchain transaction hash (TxID)</li>
<li>The transaction hash is submitted to PayzCore for verification</li>
<li>Order status is updated automatically once PayzCore confirms the transaction</li>
</ul>
This mode is useful when you want to receive all payments to a single address without setting up HD wallet (xPub) derivation.
Requirements
<ul>
<li>A PayzCore account at <a href="https://payzcore.com" rel="nofollow ugc">payzcore.com</a></li>
<li>A project with an API key and webhook secret configured</li>
<li>WooCommerce 7.0 or higher</li>
<li>PHP 7.4 or higher</li>
<li>WordPress 5.8 or higher</li>
</ul>
Before Going Live
Always test your setup before accepting real payments:
<ol>
<li>Verify your wallet — In the PayzCore dashboard, verify that your wallet addresses are correct. For HD wallets, click “Verify Key” and compare address #0 with your wallet app.</li>
<li>Run a test order — Place a test order for a small amount ($1–5) and complete the payment. Verify the funds arrive in your wallet.</li>
<li>Test sweeping — Send the test funds back out to confirm you control the addresses with your private keys.</li>
</ol>
Warning: Wrong wallet configuration means payments go to addresses you don’t control. Funds sent to incorrect addresses are permanently lost. PayzCore is watch-only and cannot recover funds. Please test before going live.
Links
<ul>
<li><a href="https://docs.payzcore.com/getting-started" rel="nofollow ugc">Getting Started</a> — Account setup and first payment</li>
<li><a href="https://docs.payzcore.com/guides/webhooks" rel="nofollow ugc">Webhooks Guide</a> — Events, headers, and signature verification</li>
<li><a href="https://docs.payzcore.com/guides/networks" rel="nofollow ugc">Supported Networks</a> — Available networks and tokens</li>
<li><a href="https://docs.payzcore.com/guides/errors" rel="nofollow ugc">Error Reference</a> — HTTP status codes and troubleshooting</li>
<li><a href="https://docs.payzcore.com" rel="nofollow ugc">API Reference</a> — Interactive API documentation</li>
<li><a href="https://github.com/payzcore/woocommerce" rel="nofollow ugc">GitHub</a> — Source code</li>
</ul>
<h3>Third Party or External Service</h3>
This plugin connects to the <a href="https://api.payzcore.com" rel="nofollow ugc">PayzCore API</a> to create and monitor blockchain payment requests. The PayzCore API is required for this plugin to function.
When data is sent:
<ul>
<li>When a customer places an order and selects PayzCore as the payment method, a monitoring request is created via the API.</li>
<li>While the customer is on the payment instructions page, the plugin polls the API every 15 seconds to check payment status.</li>
<li>If using static wallet mode, the customer’s submitted transaction hash is sent to the API for verification.</li>
<li>When the admin clicks “Test Connection” in plugin settings, the plugin fetches project configuration from the API.</li>
</ul>
Data transmitted:
<ul>
<li>Order amount, selected blockchain network and token</li>
<li>Customer identifier (order ID or email, used as external reference)</li>
<li>Store webhook URL (for receiving payment status notifications)</li>
<li>Transaction hash (static wallet mode only)</li>
</ul>
No data is sent unless the plugin is enabled and configured with an API key. PayzCore does not hold, transmit, or custody any funds — it is a read-only monitoring service.
<ul>
<li><a href="https://payzcore.com" rel="nofollow ugc">PayzCore Website</a></li>
<li><a href="https://payzcore.com/terms" rel="nofollow ugc">PayzCore Terms of Service</a></li>
<li><a href="https://payzcore.com/privacy" rel="nofollow ugc">PayzCore Privacy Policy</a></li>
</ul>
This plugin also displays links to third-party blockchain explorers so users can verify their transactions on the blockchain. No data is sent to these services by the plugin — they are informational links only, opened in the user’s browser.
<ul>
<li><a href="https://tronscan.org" rel="nofollow ugc">Tronscan</a> — TRC20 transaction explorer (<a href="https://tronscan.org/#/about/terms" rel="nofollow ugc">Terms</a>, <a href="https://tronscan.org/#/about/privacyPolicy" rel="nofollow ugc">Privacy</a>)</li>
<li><a href="https://bscscan.com" rel="nofollow ugc">BscScan</a> — BEP20 transaction explorer (<a href="https://bscscan.com/terms" rel="nofollow ugc">Terms</a>, <a href="https://bscscan.com/privacyPolicy" rel="nofollow ugc">Privacy</a>)</li>
<li><a href="https://etherscan.io" rel="nofollow ugc">Etherscan</a> — ERC20 transaction explorer (<a href="https://etherscan.io/terms" rel="nofollow ugc">Terms</a>, <a href="https://etherscan.io/privacypolicy" rel="nofollow ugc">Privacy</a>)</li>
<li><a href="https://polygonscan.com" rel="nofollow ugc">PolygonScan</a> — Polygon transaction explorer (<a href="https://polygonscan.com/terms" rel="nofollow ugc">Terms</a>, <a href="https://polygonscan.com/privacyPolicy" rel="nofollow ugc">Privacy</a>)</li>
<li><a href="https://arbiscan.io" rel="nofollow ugc">Arbiscan</a> — Arbitrum transaction explorer (<a href="https://arbiscan.io/terms" rel="nofollow ugc">Terms</a>, <a href="https://arbiscan.io/privacyPolicy" rel="nofollow ugc">Privacy</a>)</li>
</ul>
<h3>Upgrade Notices</h3>
<h4>1.0.2</h4>
Security hardening and WordPress.org compliance improvements. No configuration changes needed.
<h4>1.0.1</h4>
QR code display fix. No configuration changes needed.
<h4>1.0.0</h4>
Initial release. Configure your API key and webhook secret in WooCommerce settings.

PayzCore for WooCommerce

Accept USDT and USDC stablecoin payments in your WooCommerce store via PayzCore blockchain transaction monitoring across multiple networks.

allscaleio

Allscale Checkout is a WordPress plugin (built as a WooCommerce payment gateway) that lets your customers pay with crypto while funds settle instantly as USDT stablecoin directly to your wallet — Allscale never holds your money.
<h4>Why use Allscale?</h4>
<ul>
<li>Non-custodial. Funds go straight to your wallet. No third party holds your money. No account freezes.</li>
<li>Low fees. 0.6% per transaction with a $0.10 minimum (vs. ~3% on traditional processors).</li>
<li>Instant settlement. On-chain USDT — no waiting days for payouts.</li>
<li>Permissionless setup. Sign up, paste your credentials, start accepting payments.</li>
</ul>
<h4>Features</h4>
<ul>
<li>Native WooCommerce payment gateway.</li>
<li>HMAC-SHA256 request signing and webhook verification (timing-safe).</li>
<li>Test-connection button + automatic credential validation on save.</li>
<li>Per-order Allscale Payment meta box: tx hash with block-explorer link, payment-method type, paid / fee / net breakdown.</li>
<li>Webhook health observation: last-received timestamp, first-webhook celebration, stale-webhook warning.</li>
<li>HPOS compatible. Block-based checkout compatible.</li>
<li>Full i18n with text domain <code>allscale-checkout</code>.</li>
</ul>
<h4>Requirements</h4>
<ul>
<li>WordPress 5.8+</li>
<li>WooCommerce 6.0+</li>
<li>PHP 7.4+</li>
<li>An <a href="https://allscale.io" rel="nofollow ugc">Allscale account</a> with Commerce enabled</li>
</ul>
<h3>External services</h3>
This plugin connects to Allscale’s API at <code>https://openapi.allscale.io</code> so your customers’ payments can be created, confirmed, and settled to your wallet. Specifically:
What is sent to Allscale, and when:
<ul>
<li>On settings save and on every “Test connection” click: the API key and a signed <code>GET /v1/test/ping</code> request — verifies the credentials are correct without sending order data.</li>
<li>When a customer clicks “Place order” with Allscale selected: a signed <code>POST /v1/checkout_intents/</code> with the order’s total amount in cents, currency (or stable-coin enum), your store’s order number, an order description (the names of items in the cart, truncated), the customer’s WooCommerce user ID and billing name, and the WooCommerce thank-you URL to redirect them back to after payment.</li>
<li>When the customer lands back on the thank-you page: a signed <code>GET /v1/checkout_intents/{id}</code> to read the on-chain transaction details and reconcile the order.</li>
</ul>
What Allscale sends back, and when:
<ul>
<li>Hosted checkout URL — the page your customer is redirected to to actually pay.</li>
<li>Webhook callbacks — when an on-chain payment confirms, Allscale POSTs a signed message to <code>https://your-site.com/wc-api/allscale_checkout</code> containing the transaction hash, chain ID, the on-chain settled amount in USDT, and the payment method type. The plugin verifies the HMAC-SHA256 signature before applying any state change.</li>
</ul>
Service terms and privacy:
<ul>
<li>Allscale’s terms of service: <a href="https://www.allscale.io/agreement" rel="nofollow ugc">https://www.allscale.io/agreement</a></li>
<li>Allscale’s privacy policy: <a href="https://www.allscale.io/policy" rel="nofollow ugc">https://www.allscale.io/policy</a></li>
</ul>
Using this plugin makes your WooCommerce store an integration partner of Allscale. By installing and configuring it, you agree to Allscale’s terms.
<h3>Privacy</h3>
This plugin does not collect any analytics, telemetry, or user data on its own. It does not “call home” to allscale-io or any third party other than the Allscale API documented above.
Personal data this plugin transmits to Allscale for the purpose of processing each order:
<ul>
<li>The customer’s WooCommerce user ID (an internal numeric ID, only if they’re a logged-in customer)</li>
<li>The customer’s billing first + last name</li>
<li>The order number and total amount</li>
<li>A short description of the items in the order (product names, truncated to 200 characters)</li>
</ul>
Personal data this plugin stores locally in the WordPress database, on each order:
<ul>
<li>The Allscale checkout intent ID</li>
<li>The on-chain transaction hash (public blockchain data)</li>
<li>The settled amount, fee, and net amount in USDT</li>
<li>The chain ID and payment-method type</li>
</ul>
No card numbers, no wallet seed phrases, no private keys, and no email addresses are sent or stored by this plugin.

Allscale Checkout

Accept crypto payments with 0.6% fees (min $0.10) and instant USDT settlement to your own wallet. Non-custodial. Requires WooCommerce.

PayzCore for WooCommerce vs Allscale Checkout