Techniques are disclosed for maintaining a search index used to support application searches. The techniques include receiving application data from one or more data sources, identifying an application referenced in the application data. The techniques further include extracting a plurality of attributes corresponding to the application from the application data based on an application specific search schema. The techniques also include generating an application representation of the application based on the plurality of attributes and the application specific search schema. The techniques also include updating a search index with the application representation.