To Obtain Credentials you first must create an account you can sign up here
Once registered you will be sent a link where you must verify your email and them a final email will be sent with the credentials required.
The credentials are in two parts which are listed below
Email address – The email address you entered and received the welcome message
Password – this is the one you choose on the signup form
Client ID – This is your unique ID
Client Secret – Please make a note of this as we cannot obtain this after it has been sent to you.