PS D:\sw> Get-SPServiceApplication
DisplayName TypeName Id
----------- -------- --
AppServiceApp App Management Se... 550e9a64-f9bb-4ef1-a48e-9ea2beb5c1a8
Security Token Se... Security Token Se... df7dee30-737f-4bd4-b247-2eef65138c4c
Application Disco... Application Disco... ae917e9a-8b06-4cc5-9309-9a9ee68fbbb9
SettingsServiceApp Microsoft SharePo... 78f00da7-ecdf-4c1d-bbd9-7f6afeffdfa5