The Havenite credit was the standard currency of both the People's Republic of Haven and its successor state, the Republic of Haven. It was divided into one hundred centicredits. It apparently supplanted the Havenite franc.
The credit was not a physical legal tender, but an electronic currency tied to a person's identity chip. Despite its legal status, the Havenite population tended to employ pieces of metal as a black market currency instead of the credit, even to the point that jokes abounded claiming that the only person to use the electronic credit system was Committeewoman Cordelia Ransom. (HHA4.4: LGTP)