OFFICIAL WHMCS GATEWAY
Let clients pay WHMCS invoices with crypto.
Use your own Wholly Crypto checkout for hosting, domains and other services billed through WHMCS.
Get the gateway
Use a supported WHMCS installation with PHP 8.1+, cURL and JSON, within WHMCS’s own runtime requirements.
MIT licensed · SDK included
Keep billing in WHMCS
- Hosted crypto checkout from the client invoice
- Settled payments recorded in the original fiat currency
- Signed callbacks checked against the merchant API
- Duplicate protection and gateway payment logs
Connect your billing.
- Download the gateway ZIP from the release assets. Upload its modules directory into your WHMCS installation without removing existing modules.
- Activate Wholly Crypto in WHMCS payment gateways. Enter your installation’s API URL, Project/Store API IDs, a project-restricted credential and the store IPN secret.
- Use HTTPS and test a complete invoice on your staging installation before accepting customer payments.
The gateway verifies settlement before adding the WHMCS payment. A return from checkout alone never marks an invoice paid. Recurring invoices can be paid individually; automatic recurring debits and refunds are separate.
Low processing credits can pause IPN delivery and delay automatic billing updates. Customer payments can still arrive. Processing credits → · PHP SDK →