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.

Devdraft

Devdraft Payment is a powerful WordPress plugin that enables businesses to accept payments through both traditional banking methods and stablecoin solutions. The plugin provides a unified interface for processing bank transfers and stablecoin payments, making it easy to offer multiple payment options to your customers.
<h4>Key Features</h4>
<ul>
<li>Dual Payment Support: Accept both bank transfers and stablecoin payments</li>
<li>Multiple Payment Rails: Support for ACH, Wire, SEPA, SWIFT, and SPEI transfers</li>
<li>Stablecoin Integration: USDC and EURC support across major blockchain networks</li>
<li>Dynamic Form Interface: Intelligent form that adapts based on payment method selection</li>
<li>Real-time Payment Processing: Instant payment intent creation and processingb</li>
<li>Comprehensive Admin Panel: Easy configuration through WordPress admin interface</li>
<li>Shortcode Integration: Simple shortcode implementation for any page or post</li>
<li>Responsive Design: Mobile-friendly payment forms</li>
<li>Security Features: Nonce verification and data sanitization</li>
</ul>
<h4>Supported Payment Methods</h4>
Traditional Bank Transfers: 
* ACH Push (United States) 
* Same-day ACH (United States) 
* Wire Transfer (International) 
* SEPA (Single Euro Payments Area)
Stablecoin Payments: 
* USDC (USD Coin) – USD-pegged stablecoin 
* EURC (Euro Coin) – EUR-pegged stablecoin
Supported Blockchain Networks: 
* Ethereum (ETH) 
* Polygon (MATIC) 
* Solana (SOL) 
* Base (Coinbase’s Layer 2) 
* Arbitrum (Layer 2 scaling solution) 
* Optimism (Layer 2 scaling solution) 
* Avalanche C-Chain (AVAX)
<h3>Configuration</h3>
<h3>Step 1: API Configuration</h3>
Before the plugin can process payments, you must configure your Devdraft API credentials:
<ol>
<li>API Key: Enter your Devdraft API client key</li>
<li>API Secret: Enter your Devdraft API client secret </li>
<li>API Host: Enter your Devdraft API host URL (typically <code>https://api.devdraft.ai</code>)</li>
</ol>
<h3>Step 2: Transaction Settings</h3>
Configure transaction monitoring:
<ol>
<li>Status Check Interval: Choose how often to check transaction statuses
<ul>
<li>Every 1 Minute (for real-time monitoring – high resource usage)</li>
<li>Every 2 Minutes (for near real-time monitoring)</li>
<li>Every 5 Minutes (for frequent updates)</li>
<li>Every 10 Minutes (for regular updates)</li>
<li>Every 30 Minutes (for moderate monitoring)</li>
<li>Every Hour (default, balanced approach)</li>
</ul>
</li>
</ol>
<h3>Usage</h3>
<h3>Shortcode Implementation</h3>
The plugin provides a simple shortcode for embedding payment forms anywhere on your WordPress site:
Basic Usage: 
 <code>[devdraft_payment customer_first_name="John" customer_last_name="Doe" customer_email="john@example.com" amount="1000.00" orderid="ORDER-12345"]</code>
With Custom Title: 
 <code>[devdraft_payment customer_first_name="John" customer_last_name="Doe" customer_email="john@example.com" amount="1000.00" orderid="ORDER-12345" title="Complete Your Payment"]</code>
<h3>Shortcode Parameters</h3>
 Parameter 
 Required 
 Description 
 Example
 <code>customer_first_name</code> 
 Yes 
 Customer’s first name 
 <code>"John"</code>
 <code>customer_last_name</code> 
 Yes 
 Customer’s last name 
 <code>"Doe"</code>
 <code>customer_email</code> 
 Yes 
 Customer’s email address 
 <code>"john@example.com"</code>
 <code>amount</code> 
 Yes 
 Payment amount (decimal) 
 <code>"1000.00"</code>
 <code>orderid</code> 
 Yes 
 Order ID for transaction mapping 
 <code>"ORDER-12345"</code>
 <code>title</code> 
 No 
 Custom form title 
 <code>"Payment Form"</code>
<h3>Transaction Tracking</h3>
The plugin provides comprehensive transaction tracking capabilities:
Payment Form Shortcode: 
 <code>[devdraft_payment customer_first_name="John" customer_last_name="Doe" customer_email="john@example.com" amount="1000.00" orderid="ORDER-12345"]</code>
Transaction Display Shortcode: 
 <code>[devdraft_transaction transaction_id="txn_01HZXK8M9N2P3Q4R5S6T7U8V9W"]</code>
Transaction Information Displayed: 
* Transaction ID and Order ID for easy mapping 
* Bridge Transfer ID 
* Payment status with human-readable descriptions 
* Amount and currency information 
* Creation and update timestamps 
* Last status check timestamp 
* Customer information 
* Source and destination details 
* Bank transfer details (for bank payments) 
* Wallet addresses (for stablecoin payments)
Transaction Statuses: 
* AWAITING_FUNDS: Payment intent created, waiting for funds 
* IN_REVIEW: Transaction is being reviewed 
* FUNDS_RECEIVED: Funds have been received 
* PAYMENT_SUBMITTED: Payment has been submitted for processing 
* PAYMENT_PROCESSED: Payment has been successfully processed 
* UNDELIVERABLE: Payment could not be delivered 
* RETURNED: Payment was returned 
* REFUNDED: Payment has been refunded 
* CANCELED: Transaction was canceled 
* ERROR: An error occurred during processing 
* DISPUTED: Transaction is under dispute
Automatic Status Updates: 
* Transactions are automatically stored in the database 
* WordPress cron job checks transaction statuses hourly 
* Status updates are fetched from the Devdraft API 
* Real-time status tracking for active transactions (until PAYMENT_PROCESSED) 
* Color-coded status indicators for easy identification 
* Cron job stops checking once transactions reach PAYMENT_PROCESSED state
<h3>Payment Flow</h3>
<ol>
<li>Customer Selection: Customers choose between bank transfer or stablecoin payment</li>
<li>Method Configuration: Based on selection, customers configure payment details</li>
<li>Payment Processing: Plugin creates payment intent via Devdraft API</li>
<li>Instructions Display: Customers receive specific instructions for completing payment</li>
<li>Confirmation: Payment details are displayed for customer reference</li>
</ol>
<h3>Success Messages</h3>
<h3>Bank Transfers</h3>
When a bank transfer payment is created successfully, the form displays:
<ul>
<li>Bank name and account holder</li>
<li>Account number and routing number (for US transfers)</li>
<li>IBAN and BIC (for international transfers)</li>
<li>Bank address</li>
<li>Important reference number to include in the transfer</li>
</ul>
<h3>Stablecoin Transfers</h3>
When a stablecoin payment is created successfully, the form displays:
<ul>
<li>Wallet address (formatted as code)</li>
<li>Network information</li>
<li>Currency information</li>
<li>Important instructions about sending the exact amount</li>
</ul>
<h3>API Integration</h3>
The plugin integrates with the Devdraft API endpoints to create payment intents for both bank transfers and stablecoin transactions.
<h3>Bank Transfer API Endpoint</h3>
Endpoint: <code>POST /api/v0/payment-intents/bank</code> 
Purpose: Creates payment intents for traditional bank transfers (ACH, Wire, SEPA, SWIFT, SPEI)
Request Format: 
 <code>json 
{ 
 "sourcePaymentRail": "ach|wire|sepa|swift|spei", 
 "sourceCurrency": "usd|eur", 
 "destinationCurrency": "usdc|eurc", 
 "destinationNetwork": "ethereum|polygon|solana|base|arbitrum|optimism|avalanche_c_chain", 
 "destinationAddress": "0x742d35Cc6634C0532925a3b8D4C9db96c4b4d8e1", 
 "amount": "1000.00", 
 "customer_first_name": "John", 
 "customer_last_name": "Doe", 
 "customer_email": "john.doe@example.com", 
 "ach_reference": "ACH123456", 
 "wire_message": "Payment for invoice #12345", 
 "sepa_reference": "REF-123456789" 
}</code>
Response: Returns virtual account details for bank transfers including account numbers, routing numbers, IBAN, BIC, and reference numbers.
<h3>Stablecoin Transfer API Endpoint</h3>
Endpoint: <code>POST /api/v0/payment-intents/stablecoin</code> 
Purpose: Creates payment intents for stablecoin-to-stablecoin transfers and cross-chain conversions
Request Format: 
 <code>json 
{ 
 "sourceCurrency": "usdc|eurc", 
 "sourceNetwork": "ethereum|polygon|solana|base|arbitrum|optimism|avalanche_c_chain", 
 "destinationCurrency": "usdc|eurc", 
 "amount": "100.50", 
 "customer_first_name": "John", 
 "customer_last_name": "Doe", 
 "customer_email": "john.doe@example.com" 
}</code>
Response: Returns destination wallet address, network information, and transaction details for stablecoin transfers.
<h3>Authentication</h3>
Both endpoints require the following headers: 
* <code>Content-Type: application/json</code> 
* <code>x-client-key: [Your API Key]</code> 
* <code>x-client-secret: [Your API Secret]</code> 
* <code>idempotency-key: [Unique UUID v4]</code>
<h3>API Documentation References</h3>
<ul>
<li>Stablecoin Payment Intents: <a href="https://docs.devdraft.ai/api-reference/payment-intents/create-a-stable-payment-intent" rel="nofollow ugc">Create a stable payment intent</a></li>
<li>Bank Payment Intents: <a href="https://docs.devdraft.ai/api-reference/payment-intents/create-a-bank-payment-intent" rel="nofollow ugc">Create a bank payment intent</a></li>
</ul>
<h3>Common Issues</h3>
<ol>
<li>“API credentials not configured”: Configure API settings in WordPress admin</li>
<li>“Destination address not configured”: Set up destination addresses in plugin settings</li>
<li>“Destination network is required”: Ensure the destination network field is properly set</li>
<li>AJAX errors: Check browser console for detailed error information</li>
</ol>
<h3>Support</h3>
For support and issues:
<ol>
<li>Check the test page for configuration status</li>
<li>Review browser console for JavaScript errors</li>
<li>Check WordPress error logs for PHP errors</li>
<li>Verify API credentials and destination addresses are configured</li>
</ol>
<h3>External Services</h3>
This plugin connects to external services provided by Devdraft to process payments and facilitate bank transfers and stablecoin transactions.
Devdraft API Service 
* What it is: Devdraft provides payment processing infrastructure for bank transfers and stablecoin transactions 
* What it’s used for: Creating payment intents, processing bank transfer instructions, facilitating stablecoin wallet transactions, and checking transaction statuses 
* When data is sent: 
 * When customers submit payment forms through the plugin’s shortcode (creates payment intents) 
 * Periodically via WordPress cron jobs to check transaction statuses (configurable interval: 1 minute to 1 hour) 
* API Endpoints Used: 
 * <code>POST /api/v0/payment-intents/bank</code> – Creates bank transfer payment intents 
 * <code>POST /api/v0/payment-intents/stablecoin</code> – Creates stablecoin payment intents 
 * <code>GET /api/v0/payment-intents/{transaction_id}/status</code> – Checks transaction status 
* What data is sent: 
 * Customer information (first name, last name, email address) 
 * Payment amount and currency details 
 * Payment method selection (bank transfer or stablecoin) 
 * Bank transfer details (payment rail, reference numbers, wire messages) 
 * Stablecoin details (source/destination networks, wallet addresses) 
 * Transaction IDs for status checking 
* Terms of Service: https://console.devdraft.ai/legal/terms-of-service 
* Privacy Policy: https://console.devdraft.ai/legal/privacy-policy
Important Privacy Notice: This plugin integrates with Devdraft’s payment processing infrastructure. Customer data is transmitted to Devdraft’s secure API endpoints to facilitate payment processing. Users should review Devdraft’s terms of service and privacy policy to understand how customer data is handled. Site administrators are responsible for ensuring compliance with applicable privacy laws (GDPR, CCPA, etc.) and informing customers about data sharing practices.
<h3>Source Code</h3>
This plugin includes the following third-party libraries with their source code:
QRCode.js Library 
* Minified file: <code>assets/js/qrcode.min.js</code> 
* Source code: <code>assets/js/qrcode.js</code> (included in plugin package) 
* Original repository: https://github.com/davidshimjs/qrcodejs 
* License: MIT License 
* Purpose: Generates QR codes for cryptocurrency wallet addresses 
* Version: 1.5.3
The unminified source code for <code>qrcode.min.js</code> is included in the plugin package as <code>qrcode.js</code> to comply with WordPress plugin guidelines for human-readable code. The original source is available at: https://github.com/davidshimjs/qrcodejs/blob/master/qrcode.js

Devdraft Payment

A comprehensive WordPress plugin for seamless payment processing through bank transfers and stablecoin transactions.

PayzCore for WooCommerce vs Devdraft Payment