Hi there!
Currently I'm aware of a couple of available repositories for interatomic potentials, like:
http://enpub.fulton.asu.edu/cms/potentials/main/main.htm
https://sites.google.com/site/eampotentials/
http://www.ctcms.nist.gov/potentials/
Do you know additional sites? I'm particularly interested in Bulk Metallic alloys.
Thank you in advance.