My credit score is 670. I would like to borrow $2500. What would be a resonable APR?

Not enough information provided....no mortgage for that low loan amount.

Much more info needed, specifically, do you own a home? Are you looking to borrow against it? Are there any outstanding liens against the property? etc, etc, etc.. If it's a mortgage you want, then the bigger problem is regarding your request for $2500. Most lenders have minimum loan amounts.. typically, $50,000 to $75,000 for most lenders.. so, there is no mortgage company that will help you with $2500.. or even $25,000.. You might want to go check with a local community bank or credit union.. they might give you a signature loan or a credit card.. or contact a local mortgage broker and let them look at your complete loan scenario.. once they see the complete picture, they can advise you properly.. .. I'm a Broker here in Scottsdale AZ and I only lend in Arizona. If you or someone you know is looking for financing options, feel free to contact me or pass along my information. William J. Acres, Lender411's number ONE lender in Arizona. 480-287-5714 WilliamAcres.com NMLS# 226347

A $2,500 dollar loan would best be served with an unsecured personal loan. Go to a local credit union for rates etc.