AutoPay Manager
A production-minded subscription control center with OTP login, HMAC-signed HTTP-only session cookies, protected API routes, rate limiting, multi-currency wallet simulation, Chart.js spending analytics, and automated email alerts — built with zero frameworks on the backend.
- OTP login via 2factor.in + signed HTTP-only sessions
- Security headers, rate limiting, protected API routes
- ExchangeRate-API for live multi-currency conversion
- 9 automated tests + CI pipeline
- Simulated auto-deductions with low-balance & failed-payment alerts