Site Streams or other ways to get notifications about user activity



We are currently working on a university project creating an open-source alternative for ifttt (If This Then That). Our application can post tweets or media to twitter in response to a trigger. But we are unable to get any triggers from Twitter if a status or media is posted.
Is it still possible to get access to the site streaming API or is there any other way to implement this feature?

Thanks for your advice! You can check out the current state of our project on