A Service Provider (SPSP A Service Provider (SP) is the server/system which hosts the resource. In this context, you (or your vendor) are configuring the SP that provides a service to your customers. Your SP will integrate with our IdP.) is the server/system which hosts the resource. In this context, you (or your vendor) are configuring the SP that provides a service to your customers. Your SP will integrate with our IdPIdP An Identity Provider (IdP) is a software tool or service that offers user authentication as a service. At UT Austin, the primary IdP used to authenticate the UT EID and EID Password is Enterprise Authentication, which is managed by the IAM Team..