PS3 Manager API is a framework similar to TMAPI or CCAPI that is included in the Cobra and MAMBA payloads. It allows you to read and write values and addresses in RAM in real-time using a supported device over the local network. It's typically used for debugging and real time game modding. Note that in order to modify games, you must first convert their EBOOT to a debug EBOOT. MAPI is supported on both CEX and DEX firmwares.