Seenspire feeds are HTML-based, to make them compatible with a wide array of display solutions.
Just paste the URL in a browser, and you will see the Seenspire content stream instantly. Seenspire is built to also be used as a standalone solution.

You can find our browser minimum requirements here.
You can schedule feed URLs within a playlist managed by a content management system (CMS). Each CMS has its own method for configuring playlists and adding content such as feed URLs. As long as your CMS supports HTML, you should be able to use Seenspire content feeds like any other external web URL.