Thanks to Automated Snapshots / Backups via Vultr API And this is Python3 version script used to Automatic snapshots using Vultr API
A more customizable alternative to Vultr's backup feature using Vultr API v1. Tested on Ubuntu 16.04. Run this python3
script on Anywhere to create a snapshot of VPS (which you know IP or it's subid) and rotate out the oldest snapshot(s). Use the BACKUP_TAG_PREFIX
prefix field to uniquely id a set of snapshots.
Notice: You can only create 11 snapshots by default.