ManyChat Custom App

I am looking for someone who knows ManyChat very well and can create custom ManyChat apps.

I would like to build a private ManyChat app that connects ManyChat and PassKit.
Here is a link to PassKit’s API:
Hey Guys,

Would you be able to build me a ManyChat Integration With PassKit?

Here is a link to their API:
https://dev.passkit.net/#create-a-pass

I know it can be done via external request but I would like to have our own App that is quicker and easier to use.