RCauth.eu is an online PKI service that provides access to secured services through client certificates and delegation capabilities without exposing the complexity of PKI to users. It has three components - a web frontend based on US-CIlogon software, a backend CA based on myproxy-server with an HSM, and a filtering WAYF connected to eduGAIN. The service is supported by various European organizations and provides credentials that comply with IGTF assurance levels to qualified users who meet REFEDS and Sirtfi requirements.