Subscriptions
How to obtain a subscription key for an API:
Create an account and log in to subscribe
Review the list of Products and select the one that meets your requirements
If you are logged in you will be able to see your subscriptions (both cancelled and active)
All the APIs attached to that subscription will also be shown
Choose the one that you are interested in
Input a name to the subscription and click on the Subscribe button
You will receive an email confirming your subscription
You can then navigate to Profile, where it shows you the list of subscriptions and their start date