Magento2 - Is it possible to get base url in a static block?

You can get base url in static block like this.

<a href="{{store direct_url="business"}}">Your link</a>

You can get it by {{config path="web/unsecure/base_url"}} and If you want to append another URL then you can do like

<a href="{{config path="web/unsecure/base_url"}}test213/32"> test </a>

If you want secure base URL then you can get it by

{{config path="web/secure/base_url"}}