You are entitled to one free a year - but that goes by region in the US - I think the NE isn't until August maybe.
One of the three and can't remember which one will give you one free (if you used it before you can't get one again) it is a trial type thing that you would need to cancel after you get the report. But this is a once in a lifetime deal.
I think you are also entitled one free if you were denied credit, or a job based on your credit.