Lambda has 1mil free requests per month, so there’s a chance it would be free depending on your usage. But still, it’s not straightforward at all, so I get it.

Perhaps requiring support for bill capping is the right way to go, but honestly I don’t see why providers don’t compete at all here. Customers would flock to any platform with something like “You set a budget and uptime requirements, we’ll figure out what needs to be done”, with some sort of managed auto-adjustment and a guarantee of no overage charges.

Ah well, one can only dream.