Features apis (api.ashx/v3/features.json) is not giving all results

I am using features api to get list of feature from our communities but its not giving all results. Two days before it gave me result count of 8 and today its giving me result count 7 beacouse one featured item is expired (end date crossed ). but there are more than 7 feature items in our communities that i am nit getting in result.

I tried giving PageIndex and PageSize but still not working. 

Thanks in Advance