IDOL OnDemand by HP offers an array of data processing APIs for format conversion, image analysis, indexing, search, and textual analysis. Preview capabilities exist to view how many of these RESTful APIs behave in action. The Add to Text Index API organizes incoming content through indexing, making content easy to integrate with other APIs. In order to index content, one must first use the Create Text Index API to create an index. Asynchronous API usage is recommended for large quantity requests.