During the ESI installation, you can choose to install the ESI Service on the same ESI host system. When you install the ESI Service, the ESI Service PowerShell Toolkit is also installed on the ESI host system. Installation overview provides instructions for installing ESI.
You can use the ESI Service PowerShell Toolkit to set up or update the ESI Service entity graph, service configuration, and system registration information. Getting started with the ESI PowerShell toolkits provides details for using the ESI Service PowerShell Toolkit.