dappcrypto/cpay

DApp Crypto payment gateway SDK without KYC/KYB. Supports MetaMask and Trust Wallet. Payments in USDT, USDC, ETH, BNB, BTC.

Maintainers

Details

github.com/DAppCrypto/cpay

Source

Issues

Installs: 3

Dependents: 0

Suggesters: 0

Security: 0

Stars: 0

Watchers: 0

Forks: 0

Open Issues: 0

pkg:composer/dappcrypto/cpay

v1.0.2 2025-12-27 07:19 UTC

Requires

  • php: >=8.0

MIT 2f97ae900b6ea553bc673a50e9e1dbfee28d4e67

This package is auto-updated.

Last update: 2026-02-27 07:41:04 UTC

README

PHP SDK for accepting cryptocurrency payments without KYC/KYB.
Supports MetaMask, Trust Wallet and popular cryptocurrencies.

🚀 Features

  • No KYC / No KYB
  • Crypto payments
  • Wallets: MetaMask, Trust Wallet
  • Currencies: USDT, USDC, ETH, BTC
  • Networks: Ethereum, BNB Smart Chain and others
  • Invoice generation
  • Self-custody
  • Composer installation
  • MIT License

🔧 Installation

composer require dappcrypto/cpay

Create Invoice

examples/CreateInvoice.php - Example Create Invoice

use cpay\CPay;

$PrivateKey = '...'; // Your private key for aRecipient
$PDataObj = [
    'aRecipient'=>'0x...', // Your wallet account address (aRecipient)
    'aRecipientExt'=>'0x...', // Your wallet address for receiving USDT, USDC cryptocurrency
    'deadline'=>(time()+(60*60*24*365)), // Deadline time seconds UTC
    'nOrder'=>'1', // Order ID
    'nRToken'=>"1.50", // Amount USDT, USDC
    'nRType'=>'1', // 1 - USDT, 2 - USDC
    'sTextData'=>CPay::instance()->getTextData(['success'=>'','error'=>'','return'=>'','Description'=>''])['base64String'],
    'start'=>time(),
];
$DefaultChainId = 1;

$InvoiceData = CPay::instance()->createInvoice($PDataObj, $PrivateKey, $DefaultChainId);
if($InvoiceData['error']!=0){
    // Error creating invoice
} else {
    // The invoice has been successfully created.
    echo '<a href="'.$InvoiceData['LinkInvoice'].'">Pay</a>';
}

Get Invoice Status

use cpay\CPay;

$aRecipient = '0x...';
$nOrder = '1';

$OrderData = CPay::instance()->getOrderData($aRecipient, $nOrder);
if($OrderData['error']!=0){
    // Payment failed or is pending confirmation. Please try again later.
} else {
    // TODO The order has been successfully paid.
}

Webhook

examples/PageWebhook.php - Example Create Invoice

use cpay\CPay;

$aRecipient='0x...';
$WebhookData = CPay::instance()->getWebhook($aRecipient);
if($WebhookData['error']!=0){
    // Order error
    print_r($WebhookData);
} else {
    // TODO Order success
    echo 'Order: '.$WebhookData['orderData']['nOrder'].' was successfully paid in chain id: '.$WebhookData['orderData']['chain'].' aRecipient:'. $WebhookData['orderData']['aRecipient'];
}

Shop Registration (No KYC / No KYB)

Registration steps:

  1. Create a new account in MetaMask wallet
  2. Go to https://dappcrypto.github.io and create a shop in Ethereum, BNB Smart Chain and others
  3. Set the URL
  4. Use the private key and wallet address of this account in the SDK

âš  IMPORTANT SECURITY WARNINGS

Attention!
A separate account with a private key must be used ONLY for:

  • shop registration
  • shop management on dappcrypto.github.io
  • invoice creation

Attention!
To receive cryptocurrency payments, specify a different wallet in the SDK
and keep its private key strictly secret.

Failure to follow these rules may result in loss of funds.

Versions

  • v1.0.2 - Signature update.
  • v1.0.1 - The success page example has been updated.
  • v1.0.0 - PHP SDK for accepting cryptocurrency payments

Requirements

  • PHP >= 8.0

Contacts