LightsailPool Traffic Pool Watcher

Hourly watch on Lightsail overage risk, with instance top-up advice before the bill hits

Problem

Lightsail charges overage per GB, and same-region instances share a traffic pool; adding a few cheap instances mid-month can cover the overage. But the rules are obscure and you must add capacity before you exceed the limit — like the user hit with a $500 overage bill who only noticed at month-end.

Solution

Connect via the Lightsail API and compute per-instance traffic usage and remaining quota hourly, forecast month-end overage from historical growth, and suggest how many instances of what size to add now and how much that saves. Generate top-up commands and a monthly report.

Users

Indie developers and small teams running file distribution, download sites, or small services on Lightsail

MVP

Read-only API key integration; compute same-region traffic pool and monthly forecast; overage risk alerts via email/webhook; suggest instance specs and estimated savings; no auto-reconfiguration, only commands

Revenue

Subscription by number of watched instances, or one-time desktop license; optional paid bill-diagnosis report

Why now

Lightsail traffic billing is obscure but genuinely expensive, and cloud vendors won't build such savings tools; a lightweight monitoring layer is a good fit for a solo dev