Take a peek into the ENV vars of your Rails application.

Take a peek into the Faraday requests made during your application's requests.

Take a peek into the Flexirest API calls made during your application's requests.

Take a peek into the Memcached calls made within your Rails application.

Take a peek into the Moped and Mongoid commands made within your Rails application.

Take a peek into any collection in your Rails application. A view for https://github.com/peek/peek.

Provide a peek into the Subversion info of your Rails application.

Take a peek into the custom vars of your Rails application.