What are Keycloak’s OAuth2 / OpenID Connect endpoints?

For Keycloak 1.2 the above information can be retrieved via the url

http://keycloakhost:keycloakport/auth/realms/{realm}/.well-known/openid-configuration

For example, if the realm name is demo:

http://keycloakhost:keycloakport/auth/realms/demo/.well-known/openid-configuration

An example output from above url:

{
    "issuer": "http://localhost:8080/auth/realms/demo",
    "authorization_endpoint": "http://localhost:8080/auth/realms/demo/protocol/openid-connect/auth",
    "token_endpoint": "http://localhost:8080/auth/realms/demo/protocol/openid-connect/token",
    "userinfo_endpoint": "http://localhost:8080/auth/realms/demo/protocol/openid-connect/userinfo",
    "end_session_endpoint": "http://localhost:8080/auth/realms/demo/protocol/openid-connect/logout",
    "jwks_uri": "http://localhost:8080/auth/realms/demo/protocol/openid-connect/certs",
    "grant_types_supported": [
        "authorization_code",
        "refresh_token",
        "password"
    ],
    "response_types_supported": [
        "code"
    ],
    "subject_types_supported": [
        "public"
    ],
    "id_token_signing_alg_values_supported": [
        "RS256"
    ],
    "response_modes_supported": [
        "query"
    ]
}

Found information at https://issues.jboss.org/browse/KEYCLOAK-571

Note: You might need to add your client to the Valid Redirect URI list