Thredd Portal is Thredd's new web application for managing your cards and transactions on the Thredd Platform. or Smart Client Smart Client is Thredd's legacy desktop application for managing your cards and transactions on the Thredd Platform..Transaction-related fees are listed in your daily XML transaction report and in real-time EHI messages. Transaction-related fees can also be viewed on Thredd Portal Thredd Portal is Thredd's new web application for managing your cards and transactions on the Thredd Platform. or Smart Client Smart Client is Thredd's legacy desktop application for managing your cards and transactions on the Thredd Platform..