Complex sentence: Auth0 (pronounced "Auth Zero") provides single sign-on services, abstracting various login and identity services into a single API including public APIs like Facebook Connect and public or private instances of Active Directory and LDAP.
Split into simpler sentences: Auth0 (pronounced "Auth Zero") provides single sign-on services, abstracting various login and identity services into a single API. These include public APIs like Facebook Connect as well as public or private instances of Active Directory and LDAP.