* [Lago v1.55.0](https://github.com/getlago/lago) – Programmable API for usage-based billing designed for product-led SaaS.

* [Ever Gauzy Platform v111.53.4](https://github.com/ever-co/ever-gauzy) – Open business management platform providing ERP, CRM, HRM, ATS, project management and employee time/productivity tracking.

* [PayKit v0.2.0](https://github.com/getpaykit/paykit) – Embedded TypeScript billing framework that defines code-first plans, syncs with Stripe, gates features, and tracks usage.

* [Infra Billing Panel 0.49.0](https://github.com/mishkatik/infra-billing) – Self-hosted infrastructure expense accounting panel with server auto-sync, multi-currency balances and payments via provider APIs, plus Telegram notifications and secure authentication.

* [Flexprice v2.1.36](https://github.com/flexprice/flexprice) – Usage metering and billing infrastructure designed for AI companies to streamline pricing models and track usage.

* [YETI 1.15.51](https://github.com/yeti-switch/yeti-web) – Admin interface for managing SIP SBC with billing and multiple database support.