Every real estate agent / associate should have this link on their website - in order to combat the bate and switch advertisement by the credit reporting agencies - and help your clients obtain and monitor their report without using a credit card.
https://www.annualcreditreport.com/
Edited after initial post: You are not required to provide credit counseling services merely because you provide the link to your custormers. I highly recommend you refer you clients to a HUD certified mortgage counselor, usually associated with a non profit community based organization.

Brian,
I have been monitoring this website - and I have found that they are making it difficult to find the button that say "No, thanks, I want the free service" which could have some customers paying for a report that is free. So I also warn my contacts to make sure to search the pages to make sure they are clicking on the free links and not on their advertisement for credit scores for $5.00 because then they continue to sell them services they don't need.