Tool dossier

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.

4 sources 9,490 stars Self-hosted AGPL-3.0

Product snapshot

How the interface presents itself

Lago interface screenshot

Positioning

What this project is really offering

The goal here is to separate raw catalog facts from the sharper product shape users care about before they commit time.

About

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: 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.

Highlights

The capabilities most worth remembering

01

Flexible pricing models

02

Real-time usage metering

03

Automated invoicing

04

Revenue optimization tools

05

Usage Metering

06

Price Plans

07

Coupons

08

Add-ons

09

Invoicing

10

Prepaid Credits

11

Billing Integrations

12

Instant Charges

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Customer Portal

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Spending Minimums

15

Email Invoices

16

Grace Periods

17

Timezones

18

Credit Notes and Refunds

Evidence

What backs up the editorial summary