Authentication
Authentication via Prycing is quite easy. Just head over to you settings and use the "API tokens" section.

Give it a name#
This is the most important part, just think of a name
Use the token, make a test call to the main page#
Copy the token as a Bearer token and call the /api/v1 route, this will result in the following response:
{ "name": "Example shop", "domain": "examplesite.com", "additional_domains": "", "excluded_domains": [ "examplesite.com" ]}