REST API Endpoint: https://open.auth-id.authentibility.uk/wp-json/wp/v2/service-user
Sample API output:

Fetch JavaScript Web Token (JWT) using POST command at https://open.auth-id.authentibility.uk/index.php/wp-json/api/v1/token (sample credentials pending release here)
Test token using GET command at https://open.auth-id.authentibility.uk/index.php/wp-json/api/v1/token-validate
Find out more about this project at https://www.authentibility.uk/
