Add Siri Shortcut with URL Scheme

I've found that you can add a Siri Shortcut using the following scheme...

shortcuts://create-shortcut

However I'd like to pass it parameters to fill in the shortcut so that the user just has to click add/done/accept to add the shortcut to their Shortcuts app.

I've tried to find documentation about the URL scheme and if it can be sent any parameters but this is all I have found so far...

https://support.apple.com/en-ca/guide/shortcuts/apda283236d7/ios

Hoping someone can point me in the right direction.
Also for clarity, I'm using this method as I'd like to add the shortcut from a home page so that users can interact with my API using the "Get Contents of URL" Action.

In my use case, an "app" is not available in order to add the shortcut using the "Add to Siri" button.
Add Siri Shortcut with URL Scheme
 
 
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