Please note: supports up to 50000 future calls in a 24h timespan
public with sharing class AsyncApexJobUtils {
public static integer futureCount() {
integer c = [select count() from AsyncApexJob where JobType='Future' and CreatedDate >= :Datetime.now().addDays(-1) limit 50000];
system.debug('#futureCount: ' + c);
return c;
}
}