tag

billing system

128 (<1)
volcano — A gateway-agnostic billing system with a fully-featured API and front-end control panel.
Similar billing system

Some additional repos to consider:
63
BillRun/system — BillRun - Open Source Billing and Fraud Detection System
Similar
3
Billing-Request-System — Allows individual users to create billing requests and e-mail them to accounting - pulls projects from Basecamp

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