OCPP

The Open Charge Point Protocol (OCPP) is a standardized communication protocol that is used between charging stations for electric vehicles (EVSEs) and a central management system (CSMS). It is an open and vendor-independent standard that enables broad interoperability between different vendors of charging stations and the associated management system.

Technically, the OCPP protocol establishes a WebSockets connection between the OCPP client and the OCPP server. The protocol stipulates that an OCPP request can originate from both the client and the server.