* [Lago v1.52.0](https://github.com/getlago/lago) – Programmable API for usage-based billing designed for product-led SaaS.

* [Ever Gauzy Platform v111.38.4](https://github.com/ever-co/ever-gauzy) – Open business management platform providing ERP, CRM, HRM, ATS, project management and employee time/productivity tracking.

* [Flexprice v2.1.26](https://github.com/flexprice/flexprice) – Usage metering and billing infrastructure designed for AI companies to streamline pricing models and track usage.

* [Billing SDK v1.4.1](https://github.com/dodopayments/billingsdk) – Type-safe React components for billing and subscription management built with TypeScript and Tailwind CSS.

* [Infra Billing Panel 0.39.0](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.

* [YETI 1.15.44](https://github.com/yeti-switch/yeti-web) – Admin interface for managing SIP SBC with billing and multiple database support.

* [Meteroid v1.0.0-rc7](https://github.com/meteroid-oss/meteroid) – Cloud-native pricing and billing infrastructure for product-led SaaS, supporting usage-based billing, invoicing, pricing models, and revenue insights.