The member API enables you to login as a member, make bookings and amend or cancel their previously made bookings.
To authenticate you will require a auth token. This can be obtained by a POST request with the member's email and password to the login endpoint.
curl "https://bookingbug.com/api/v1/login" -H App-Id:{app_id} -H App-Key:{app_key} -X POST -d "email=me@example.com&password=mypass"
The response will include the auth token and a link to the member which can be used as follows:
curl "https://bookingbug.com/api/v1/members/{id}" -H App-Id:{app_id} -H App-Key:{app_key} -H Auth-Token:{auth_token}