Abstract: Method of providing a Global Platform (GP) compliant Trusted Execution Environment (TEE) starts with main processor executing an application stored in memory device. Application includes client application (CA) and trusted application (TA). Executing the application includes running CA in client process and TA in TEE host process. Client process and TEE host process are separate. Using TEE host process, a request including identifier of the TA is received from client process to open session. Using GP Trusted Services enclave included in TEE host process, TA enclave associated with the identifier is determined and loaded in the TEE host process using the GP Trusted Services enclave to establish the session. Using TEE host process, commands to be invoked in TA enclave and set of parameters needed for commands are received from client process. Using GP Internal APIs, commands in TA enclave associated with identifier are executed. Other embodiments are also described.