The Sentry Ruby SDK by Sentry allows API interaction to access monitoring data. Integrations are possible with Ruby on Rails, Rack, and Sinatra frameworks. Installation and configuration available.
If you've ever wanted to know what's happening with your web site as it's happening, you may want to take a look at real-time web site analytics provider Chartbeat. It's a new and very slick service that provides a rich set of real-time analytics. They offer a range of useful tools like their Real-time Dashboard (shown below), traffic alerts (ex: get an email if you've got an above average burst of site visitors), and their API (our chartbeat API Profile).
