iZooto push APIs to send notifications to subscribers allow you to send notifications to an individual subscriber against subscriber ID, to multiple subscriber IDs, to a group of subscribers bucketed using tags, to an audience defined with 'Audience Builder' on panel, to all.
Before you start using these APIs, please ensure that you've the API key for the website with you. You can place a request for the same from iZooto Panel from Settings > Get API Key > Request API key. You'll receive an API key over email as soon as your request gets approved.
You can use combination of different push APIs to send notifications.