I've built something like this in the past (I was running a beefy server for my friends, and wanted them to know how much it was costing us at an hourly rate, b

I've built something like this in the past (I was running a beefy server for my friends, and wanted them to know how much it was costing us at an hourly rate, before they ran it for 3 weeks straight). It's definitely possible and not very challenging, but the API Documentation for prices was pretty weak when I built it (a year or two ago, written in Go if it makes a difference). The google cloud prices API was similarly gross. It was kinda fun, but I wouldn't enjoy maintaining that code. In reality, it turns out that $/hour isn't a super straightforward metric (there are many dimensions that go into it), so it's not super straightforward to query.