When retrieving a list of feeds via newsblur.com/reader/feeds, is it possible to only retrieve unmuted (AKA active) feeds?
Do you have an unusually large number of muted feeds? The point of muted feeds is to still be subscribed to them, just not have their unread counts be counted. So they show up in All Sites but not Unread. Which means you should still expect to see the. In the api.