There are gazillion compliance laws, etc, but basic copyright laws commonly cover these things.

https://www.rentcast.io/terms-api

> You and We acknowledge and agree that, in the event of a third-party claim arising out of or relating to your access to or use of the RentCast API, or your possession, use, disclosure, display, resale, or distribution of the API Data, including any claim that such activities infringe any third-party’s intellectual property rights or do not comply with applicable laws and/or regulations, you, and not Us, will be responsible for the investigation, defense, settlement, and discharge of any such claim. You will promptly notify Us in writing of any such claim.

Database copyright isn't really a thing in the US.