Before you can subscribe to an API you need to sign using your SSO credentials. This is required so that we can link your account to the subscription.
If you don't have an SSO account yet, you can can get in contact with us by using the sign up button.
This also requires you to create an application. During the process you need to specify which environment you want to use from the API and also a name for your application.
After you've submitted your request it will be reviewed and you get notified via email.