Quick Utils: quick-nats-are-bad

October 8, 2025

Sometimes a combination of humor and details can change things. In my case convincing a team to take on the management of their NAT infrastructure is a difficult to do. So I wrote a quick tool to help and to give quick numbers if dealing with that nagging “should we replace these NAT Gateways?” question.

It scans your US regions, lists NAT Gateways, pulls pricing, reads CloudWatch data processing, and estimates monthly spend. The output highlights where your money goes—hourly NAT charges plus per‑GB data processing—and flags cross‑AZ routing that quietly adds $0.01/GB in both directions.

Source code is available on GitHub.

To install run:

brew tap bevelwork/tap
brew install quick-nats-are-bad

quick-nats-are-bad # Run it

For other quick utils, check out bevel.work.