Upload the module files

Extract the zip and upload both files into your WHMCS installation, keeping the folders:
modules/gateways/cryptoipg.php
modules/gateways/callback/cryptoipg.php

Activate the gateway

In WHMCS admin, go to Configuration → System Settings → Payment Gateways (or Setup → Payments → Payment Gateways on older versions). Open All Payment Gateways, find Crypto IPG and click it to activate.

Enter your credentials

On the Manage Existing Gateways tab, set Gateway URL to https://cryptoipg.com, paste your Secret API key and Webhook secret, choose a default coin, and Save Changes.

Add the webhook

In your Crypto IPG dashboard → website → Webhooks, add:
https://YOUR-WHMCS.com/modules/gateways/callback/cryptoipg.php

Add wallets & test

In your Crypto IPG dashboard, open your website and add a wallet address for each coin you want to accept. Only enable coins you have added a wallet for — and always send one small real test payment before going live.

Before you go live: send one small real payment through the checkout and confirm the order flips to paid. Only enable coins you have tested.

WHMCS setup guide

Upload the module files

Activate the gateway

Enter your credentials

Add the webhook

Add wallets & test

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