Want to add some features to the existing API

Hai, Want to add some features to the existing API? Vultr Has added 95% of Features. Like, Create of Instances, DNS, etc. https://github.com/vultr/whmcs-vultr. But there are some missing options. Just want to add one feature you can get API details from https://www.vultr.com/api/. So I am expecting you to add some features to the existing API. Features include Only Just Block Storage. Must add Backend and Give Option in front End. https://www.vultr.com/api/#tag/block.