
Lago
Open-source billing system that handles metering, usage-based pricing, and invoicing at scale. Perfect for AI, cloud, and API companies needing flexible monetization.
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Lago delivers enterprise-grade billing infrastructure that scales with your business needs. The platform excels at processing high-volume usage data (up to 15,000 events/second) and converting it into accurate invoices through real-time metering.
Key capabilities include:
- Flexible pricing models supporting pay-as-you-go, hybrid plans, and complex usage-based scenarios
- Real-time usage metering with an event-based architecture that handles massive scale
- Automated invoicing that calculates charges and generates professional invoices
- Revenue optimization tools including prepaid credits, coupons, and instant add-ons
As an open-source solution, Lago provides full transparency and customization options. Companies can audit the code, maintain data control, and build custom features on top of the core platform. The system integrates seamlessly with popular tools like Stripe, NetSuite, AWS Marketplace, and accounting software.
Trusted by industry leaders including Mistral AI, Algolia, and Github, Lago has proven its ability to handle complex billing requirements at scale. The platform is particularly valuable for AI companies, cloud services, API providers, and fintech firms needing sophisticated usage-based monetization.
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