Cloud Hosting service allows you to deploy your applications using a CLI. To use the CLI, you need an API Key & API Secret. To generate these, make sure your application has already been approved by an administrator.
Once your application is approved, you should see an option to generate an API Key & Secret next to your application.
Applications List with context menu
Select "Generate API Key" and you should soon see a new screen which allows you to download your API Key/Secret pair in a text file.