diff --git a/services%2Fsso.md b/services%2Fsso.md
index 3c05967..db94dc6 100644
--- a/services%2Fsso.md
+++ b/services%2Fsso.md
@@ -21,5 +21,8 @@ Those with strikeout can't or shouldn't be able to use SSO to enter.
 
 ### How to integrate
 
+Keycloak API
+ - https://www.keycloak.org/docs-api/22.0.4/rest-api/index.html#_uri_scheme
+
 Matrix/Synapse
  - https://matrix-org.github.io/synapse/latest/openid.html
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