Workaround for querying an api repeatedly to detect if change has occured in the data?

I want to query an api that gives me a resource that can change at anytime therefore i have to keep querying it to check for changes problem is the api allows only limited number of requests in a day .Is there a workaround for this.Is there some way i can set up some sort of trigger or hook that notifies me if said change occurs in the resource . Are there any online services that may help me do this .. Is there a programming alternative that would minimize the amount of times the querying needs to be done.

Thank you..

via uman