Admin API: Fetch only orders with (or without) specific tag?

[JFrankParnell]

Using the Admin REST API, the docs say I can put tags on orders.  I dont see how to query a list of orders that do or more importantly do NOT contain a certain tag.

If I pull orders, I want to put a tag [pulled] on that order.  Then, next time I pull orders, I dont have to get all orders and loop thru them, looking for orders I dont already have.  So "orders not containing tag: Pulled"

thanks.