Twitter API Mobile works on Check ins feature on eDirectory. After login into eDirectory using Facebook or eDirectory account, users can check in into a specific Listing. If the user has the Twitter account configured on his profile, the check in will be also posted to user's twitter. To allow your users to configure their Twitter account into /profile side, you need to configure into Site manager Settings > Twitter > Twitter Settings For Check In Feature the API and Secret Key. Note: If you don't have it, you need to configure in http://dev.twitter.com/<br />Follow the 3 steps and Twitter will show up with API and Secret key to integrate into your eDirectory.<br /> 1. Go to dev.twitter.com and click in 'Create an App';<br /> 2. Fill all fields correctly. Leave the field Callback URL blank;<br />3. After save your aplication, click in the tab Settings. Set the Application Type as 'Read and Write' and save;<br /> 4.After you register the application go to the sitemgr > Twitter Settings and set the Twitter API Key and Secret Code and save.