I Built an API Auto-Discovery & Monitoring SaaS with FastAPI + Next.js — Meet Upzilla

APIs rarely fail loudly. More often it’s: one forgotten endpoint returning 500 a slow webhook killing UX a silent TLS issue missing security headers nobody noticed And usually, you only find out after users complain. That’s why I built Upzilla . 🚀 What Is Upzilla? Upzilla is an API auto-discovery and monitoring service. You enter a domain → it discovers public API endpoints → you enable monitoring → it alerts you when something breaks or slows down. No manual endpoint listing required. 🔗 Live: https://upzilla.app 🔎 API Auto-Discovery (No Signup Required) Most monitoring tools assume you already know what to monitor. Upzilla starts differently. Just enter a domain and it will: Discover public API endpoints Detect common API patterns Analyze JavaScript for hidden routes Identify GraphQL endpoints (when available) You can run a full scan instantly in guest mode — no registration required. 📊 Real-Time Monitoring After discovery, you can enable health checks: Checks as frequently as every 6