WHMCS

Offer crypto checkout in WHMCS with one-time and recurring pay links.

Integrate ZBX with WHMCS so clients can pay invoices with cryptocurrency at checkout.

Single-item checkout only. Multi-item carts are not supported for the crypto payment method. Customers see an error on multi-line invoices if the crypto method is selected.

Setup

1. Merchant account

Create and KYB-ready your organisation at https://merchants.zbx.boomfi.xyz/.

2. API key

1. Open https://merchants.zbx.boomfi.xyz/dashboard/settings/api-keys
2. Create API key, name it, store the secret

3. Pay links

Create:

• One one-time pay link (enable allow repeat payments without confirmation so multiple checkouts can reuse it)
• One recurring pay link for subscription-style billing

See Payment Links.

4. Install and configure the WHMCS module

1. In WHMCS, open Apps & Integrations.
2. Search for the crypto payment module and activate it.
3. Configure:

Field	Purpose
Show on order form	Whether crypto appears at checkout
Display name	Label clients see (for example “Crypto payment”)
Test mode	Use pay links / keys from a separate test merchant account when you have one
One-time payment link	From step 3
Recurring payment link	From step 3
API key	From step 2

Test mode

Enable Test mode in WHMCS only if you have a separate test merchant account. Use that account’s pay links and API keys.

Live mode

Disable test mode and use production pay links and API keys from https://merchants.zbx.boomfi.xyz/.

Related

• Integrations Overview
• Payment Links
• Subscriptions