This paper introduces a novel model for a decentralized perpetual futures AMM protocol, utilizing a family of asymptotic power functions. It enables the construction of permission-less perpetual markets for any underlying asset, provided price feed. We provide a rigorous mathematical formalization, derivative pricing and analysis of the model. It shows that, when properly initialized, a perpetual market is everlasting under any market conditions. Furthermore, the model represents the first-ever power perpetual market to offer no liquidation for traders and no bankruptcy for liquidity providers, breaking away from conventional unique position models and order-book in legacy perpetual exchanges.