A crypto perpetual contract, also known more commonly as a perpetual swap or just “perp”, is similar to a futures contract, except it has no expiry date. An Overview of Interest Rate SwapsTo explain what crypto perpetual contracts are and how they work, we will use the purchase of a car as an example. Just like Jack, crypto traders are able to swap interest payments for the performance of a crypto token, with perpetual swaps. To perfectly replicate the borrowing and lending of the base and quote currency, buyers of perpetual swaps must pay the quote currency rate and receive the base currency rate. Leverage in Perpetual SwapsOn BitMEX, we offer the highest leverage on crypto perpetual contracts, with up to 100x leverage offered.