I am fond of your work, good job :).
1. In-browser try it out of the API would be great, take the example of swagger [1].
2. The sign-in/sing-up is a bit complicated in my opinion. Why do I have to follow the link in the email to sign-in, why not a email/password login procedure? Also nit but the link the email is given with the text “Sign-in to the wheelhorse”, which may seem suspicious, I would rather prefer the original long link(like most other apps).
3. I cannot find the price plan, I don’t want to start using it without knowing the plans. In my opinion this deserves its own page on the menu.
4. How does your service compare to others?
5. Not sure if this is important, but I can’t find the authors or who is behind it.