Haka is member in both Kalmar2 e-identity Union and eduGAIN service. If your service is registered to national identity federation which is member of either, it may already be accessible to Haka-users. Also, users in national federation which is member of either partner federation, may be able to utilize services that are registered to Haka.
Kalmar Union
eduGAIN
eduGAIN service is opt-in. If the Haka-organization using your service still hasn't opted in to eduGAIN, please encourage your contact person in that organization to contact Haka-helpdesk and ask how to opt in to eduGAIN. Also, you can give her/him this link: Liittyminen eduGAINiin.