Adding your blog to your Youtube page

i have a self-hosted wordpress.org account (www.djvandal.com/artnerd) and i would like to add it to my youtube account. there is a new linking feature that i would love to try out. the problem is i need an api key and an api url. i have searched the codex and the forums but am coming up short. i should not need a wordpress.com account to do that. any suggestions?????