Open-source Billing Software & Client Area for Pterodactyl
"PteroBilling is an open-source Laravel 8 online store, client area, and billing software built for the game server management panel Pterodactyl.
PteroBilling uses Pterodactyl's API to automatically create accounts and servers for your customers after the payment. It creates invoices and collects payments.
PteroBilling also features a built-in support center for your clients, with a ticket system, knowledge base, system-status page and custom announcements."