The User API can be accessed using the following secure link.

https://domain%2fmyemail%40test%2Ecom:[email protected]/users

Note the following:

• https:// is at the start of the User API request
• domain is your site's domain. Example: google or long-hyphenated-domain
• / (forward slash) or %2f between the domain name and the email address

• @ (at symbol) or %40 for the email address.
• . (the period)or %2E for the period separating the domain name from thecom.
• : (colon): between the email address and the password

• : (colon): between the password and the https://api.epublishing.com/users URL
• /users to call the appropriate API

Basically, any special character between the https://and the @api.epublishing.com must be percent-encoded based on the following rules: https://en.wikipedia.org/wiki/Percent-encoding

To see the documentation, the article on accessing the Users API documentation is helpful.