What is the difference between AdSense Management API and AdSense Host API？

Google recently released AdSense Management API, popularly known as "AdSense API" among AdSense users. However, only few are aware that Google had a set of AdSense APIs for few years, which is now renamed to AdSense Host API. Let me discuss the AdSense APIs in detail.

AdSense Host API AdSense Host API was originally called AdSense API and was released in year 2006. AdSense Host API is a set of web services that can be used by users to perform the following tasks: 1. Create AdSense account for members of the websites (still require individual approval for each AdSense account created) 2. Associate  existing AdSense account of members to the host account so that the host can retrieve reports of the associated AdSense account. 3. Retrieve reports of the associated AdSense accounts 4. Modify certain settings in the AdSense accounts. Typically, AdSense Host APIs are used by websites which offer revenue sharing to content contributors. In this model, the AdSense account representing the website is promoted as a special account called "AdSense Developer Account". The website can develop and integrate features to associate AdSense accounts of publishers to the site and share the AdSense revenue with the members by using AdSense APIs. AdSense Management APIs AdSense Management APIs are a new set of APIs released by Google in October 2011. These APIs can be used by anyone who want to programmatically retrieve AdSense reports for their own use or for others through Custom Apps. There is no AdSense account required to develop the Custom Apps. Once the App is developed, AdSense users can use the App to find reports of their AdSense accounts, depending on the features offered by the App. Difference between AdSense Host API and AdSense Management API AdSense Host APIs are for large websites and is meant for developing revenue sharing model to share revenue with content writers of their websites. The minimum requirement to qualify for this process is, 100,000 page views per day along with several other quality and implementation requirements. Implementation of AdSense Host APIs must go through strict manual review by Google AdSense API team before it can be ready for production. These APIs are pretty powerful and can be used to generate various reports and update certain information in the AdSense account of associated users. APIs cannot retrieve any sensitive personal information or cannot modify payment settings. AdSense Management APIs can be used by anyone after registering through the Google API console. Anyone can call the APIs and custom apps can be developed consuming the APIs. There are limited number of APIs available in this model and are Read-Only. These APIs cannot be used to make any updates to the AdSense account of the end users.