Oxialink Crypto Payments for WHMCS
==================================

Accept USDT, Bitcoin, Ethereum, TON and 14 coins on your WHMCS invoices.
Real on-chain settlement, no chargebacks, fees from 0.2%.

Requirements
------------
- WHMCS 8.0 or newer
- PHP 7.4+ with curl
- A free Oxialink account (https://oxialink.com/register)

Installation
------------
1. Copy the contents of this zip into your WHMCS root:
     modules/gateways/oxialink.php
     modules/gateways/callback/oxialink.php
2. WHMCS admin: System Settings -> Payment Gateways -> All Payment Gateways
   -> activate "Oxialink Crypto Payments".
3. Fill in:
     API Key + API Secret  - from oxialink.com/api-docs while signed in
     Webhook Secret        - from Oxialink dashboard Settings
     Coins offered         - comma-separated list shown to clients
4. Save. Clients now see a coin picker and a Pay Now button on invoices.

How it works
------------
The client picks a coin, is redirected to the hosted Oxialink checkout
(QR code + live confirmation count), and the invoice is marked paid
automatically when the payment settles on-chain. Every notification is
HMAC-SHA256 verified. Underpayments and expirations are written to the
gateway log for manual review.

Support: https://oxialink.com/api-docs
