Default Price List for customer/contract

Hi,

I'm hoping someone can help me find where to get a value from via the Query API.

In Corrigo application, there are some exports available under "Admin & Settings > Import/Export".

One of these has name = "Contracts".

The output has a default price list linked to each customer's contract.

Does anyone know where I can get this same information via the API?

I can't find a default price list linked to either contract or customer.

Thanks for any help you can give.