WHMCS plugin
Recurring crypto billing in WHMCS
Add stablecoin payments to WHMCS invoices, client-portal payment actions, and the existing paid-order workflow. Suitable for hosting, SaaS, and managed services already billed through WHMCS.

Nothing leaves WHMCS
Stablecoin invoices within the existing WHMCS billing cycle
WHMCS already runs your invoices, renewals, suspensions, dunning emails. The plugin slots into all of that — clients pick Paymos at the next invoice, the rest of the flow doesn't change.
Native WHMCS gateway
Paymos appears alongside PayPal and credit card gateways. Clients pick crypto at invoice payment time.
Recurring invoices supported
Renewal invoices generate on their own cycle. Each one bills as its own Paymos invoice that the client opens and pays, so every cycle reconciles against exactly one bill.
Auto-marked paid
When the customer pays, the WHMCS invoice is marked paid automatically. Services activate, renewal reminders stop, no manual flag.
Test mode included
Run a sandbox client, generate a test invoice, and watch it confirm. Switch the same connected module to Live when ready.
Install in three steps
From upload to first paid renewal
The plugin ships as a standard WHMCS module. Upload, activate, then approve one Connect Paymos request — no secrets to copy.
Upload the module
Extract the release archive over your WHMCS root. It lays down modules/gateways and includes/hooks — nothing to move afterwards.
Connect Paymos
Open the intended project in Paymos, then activate the gateway under Configuration, System Settings, Payment Gateways and click Connect Paymos. Approve the displayed WHMCS URL and current project.
Bill the first client
Generate a test invoice, pay it through the client portal, watch it auto-mark-paid. Switch live, you're billing.
Pricing
1.0% per settled invoice. Plugin is free
Nothing to license, nothing per client, nothing to renew each year. A renewal invoice is charged at the same rate as the first one.
See pricing