Lago

Lago is an open-source usage-based billing engine tailored for developers. It simplifies the management of financial transactions by supporting various billing models, including usage-based, subscriptions, and discounts. Available in self-hosted and cloud-based formats, Lago facilitates the integration of complex pricing structures into applications, promoting flexibility and scalability. Its standout features include high customizability, ease of use with robust APIs, and detailed documentation, allowing teams to quickly set up and tailor the system to their unique requirements.