LiteVPS bills disposable VMs per minute at price_hourly / 60, caps each VM at its monthly price, and keeps charging while a VM is stopped. This article includes a tested estimator script for pricing a single sandbox or a whole batch.
How LiteVPS VMs get outbound internet, managed SSH, and HTTPS proxy access without a public address, and when the dedicated sticky public IPv4 add-on is worth its price.
A dependency-free Python controller that creates a temporary VM, waits with a deadline, runs bounded work, and retries cleanup without hiding failures.