A Stripe-like API versioning library - full-featured enhanced Typescript port of Python's Cadwyn

Production-grade API key authentication & rate limiting backend built with Node.js, Express, and PostgreSQL. Implements SaaS-ready architecture with JWT auth, bcrypt hashing, daily usage limits, and strict MVC separation. Perfect reference for building developer platforms like Stripe or OpenAI.

A clean, developer-friendly subscription billing abstraction layer for PHP that brings Stripe-like subscription and proration features to Paystack and Flutterwave.