The Reltio Authentication API performs authentication operations for a user.

Customers use the Reltio Auth API to get the access token to access their tenant. The access token permits the customer to request protected information by calling other Reltio APIs. It is implemented using OAuth2 protocol ( http://oauth.net/documentation/ ).

If your tenant is configured to use SSO, you must instead obtain an access token from your SSO Auth server. For more information, see OAuth 2.0/OpenID Connect (OIDC) Single Sign On (SSO)

Since the third-party access token isn't known to the Reltio Auth server, some modifications need to be made to the default configuration. This case is described in the section "Obtaining an access token from a third-party SSO Auth Server.