Saweoure

Saweoure is a planet located on the edge of Federation space. The planet still used currency, and anyone who didn't have many was forced into slavery or they died.

In 2260, Janice Rand and her family arrived on Saweoure after limping through space at sub-light for three years. Her father couldn't afford repairs, so they had to sell the ship to buy a home, and were forced into slavery to live.

(TOS novel: Enterprise: The First Adventure).