Can you use MoCA without a modem?

Excuse me, I'm a bit confused about the capabilities of MoCA technology. I understand that MoCA stands for Multimedia over Coax Alliance, and it's a way to transmit data over coaxial cables typically used for cable TV. But I'm wondering, is it possible to utilize MoCA without having a modem connected to the system? I'm curious if the technology can function independently or if it inherently requires a modem for its operation. Could you please clarify this for me?