You can subscribe to an RSS feed of activity in TripIt.
Step 1 – After signing in to your TripIt account (at www.tripit.com) and clicking on your user name in the upper right of any page, select Settings > Publishing your data..
Step 2 – On your Publishing your data page, click on RSS to the right of Your network feed.
Step 3 - On the pop-up that appears select your feed.
Updated: Aug 30, 2016