diff --git a/README.md b/README.md
index 779098b..4a0f8de 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,8 @@ This is 100% alpha software! PRs are welcome to improve the code.
 
 There is NO admin configuration! You must use the API to configure the program!
 
+I have only tested this program with Keycloak so far. Help is welcome to test with other providers.
+
 ## Supported Protocols
 
 - [OpenID](https://openid.net/what-is-openid/)