In order to receive the demo results you need to subscribe to the premium service. Please see the following link for the list of options: http://www.opencalais.com/open-calais-products/

So you meant that if I subscribe to the premium service, I'll get the same result for API calls and online demo? But I am curious why it should have a different result for two ways? For example, if I search on demo site with a string it can detect some entities but with same string from API call it doesn't detect same entities. Rather it detects different entities.

@mrahman1

There are a few variables in the API calls that can impact the output. If you can please provide an example we may look into this.