Best SSO Tool Provider: Why LoginRadius Is Considered As The Best SSO Solution SSO tools have become an integral part of the protected environment of businesses and developers. Single Sign-on (SSO) is a special authentication mechanism that allows users to access several programs with a single set of credentials, such as a username and password. When accessing multiple applications, portals, and servers, SSO products are typically designed to simplify the verification process and create a seamless environment. LoginRadius provides the opportunity to support a wide variety of users in an enterprise and beyond, to cover everyone.