JT-Bridge looks for CQ calls in WSJT-X and checks in your logging application (Aether, MacLoggerDX, RUMlog or RUMlogNG) for previous QSO and QSL status of the call and DXCC Entity.
The call can be looked up in QRZ or HamQTH call books, to include QSL check of CQ zone, ITU zone, State, IOTA and Grid.
It's possible to filter the list to show QSL status for the current band and/or mode.
With call book lookup, JT-Bridge will also show if the CQ caller is using LoTW or eQSL.
Alerts can be sent to OS X Notification Center. Logged QSOs in WSJT-X can be sent to your logging application.
A simple CAT interface enables some control of the transceiver via your logging application.