Lago

Lago is an open-source metering and billing platform for product-led companies that need to track usage, manage subscriptions, and bill from events. It handles usage-based, subscription-based, and hybrid pricing, with self-hosting for full control over your data or Lago Cloud for a faster start.

It is API-first, exposing every feature through a REST API, with SDKs for Node.js, Python, Ruby, and Go. Lago is payment-agnostic and works with Stripe, Adyen, GoCardless, or any gateway. It also includes prepaid credits, coupons, dunning and payment retries, revenue analytics, and white-label embedded billing.

It is licensed under AGPL-3.0. Self-host with Docker Compose, with optional S3 or GCS storage, SMTP, and SSL, or deploy on-prem or in a VPC. The hosted service is SOC 2 Type II certified.