Keycloak oauth_url

Hello, please, is anyone using Keycloak + Jitsi (Prosody)? I dont know what string I need to oauth_url parameter. I tried full path to openid-configuration, path to account page, but nothing not worked. GUI said only “Connecting” after chosen “I am the host” and filled username and password. Log is empty. Modules auth_oauthbearer and sasl_oauthbearer loaded.

Thank you for answer.