You can add a Flurry API key creating it on the Flurry.com dashboard and adding it in the Paperlit Plugins section.
Please sign up or login into the www.flurry.com site in order to create the key.
Select the “Applications” tab and then click on “Add a new application” in the top-left of the page.
Select the platform.
Insert the app name and the related category.
Flurry will show the api key. Now you just have to add it in the paperlit plugins section and click on the “Apply” button.