UniBee is an open-source subscription billing platform built for modern SaaS, fintech, B2B, and AI companies. It covers the full subscription lifecycle from plan creation, trials, upgrades, and renewals to automated global invoicing in multiple currencies and payment methods. UniBee supports usage-based billing for any metric such as API calls, tokens, or events, while built-in analytics provide real-time visibility into MRR, churn, customer lifetime value, and overall revenue performance. Smart dunning management helps recover failed payments automatically through configurable retries and notifications, ensuring consistent cash flow with minimal manual effort.

Designed for flexibility and scale, UniBee gives teams full control over their billing infrastructure without vendor lock-in. The core platform is free and open source, allowing you to self-host and customize it to your exact needs, or you can get started quickly with affordable managed cloud plans. UniBee integrates seamlessly with existing payment gateways, tax providers and tools, so it fits naturally into your stack. With pricing that grows alongside your business and data-driven insights built in, UniBee empowers startups and scaling companies to monetize, analyze, and optimize subscriptions with confidence.