To start using Realtime Cloud Storage you just need to obtain your free application key at https://accounts.realtime.co/signup/
After you register and subscribe the Realtime Cloud Storage service you can obtain your application key and private key using the Web Console by clicking the details link on your subscription:
You’ll find your application key and private key at the right of your screen as shown in the following picture:
Whenever you need to connect to your Realtime Cloud Storage you’ll need to use your application key. The private key is only used for authentication purposes, so you can authenticate your user’s tokens to define their permissions, but for simplicity we’ll cover that later in the Security chapter.
For more details check out the Realtime Cloud Storage documentation at http://framework.realtime.co/storage/#documentation
NOTE: By default a Realtime Cloud Storage free application key doesn’t have authentication enabled, meaning that any request will be allowed. Naturally this is cool when you’re developing and trying features for the first time, but please remember that you should always turn the authentication on at least when your project goes into production. Please refer to the security chapter of the documentation to know how you can easily turn the authentication on using the Web Console.