diff --git a/v2/proxy.proto b/v2/proxy.proto
index f988277..77ad1d5 100644
--- a/v2/proxy.proto
+++ b/v2/proxy.proto
@@ -33,11 +33,22 @@ message ClientMfaTokenValidationResponse {
   bool token_valid = 1;
 }
 
+enum OpenIdProviderKind {
+  OPEN_ID_PROVIDER_KIND_UNSPECIFIED = 0;
+  OPEN_ID_PROVIDER_KIND_CUSTOM = 1;
+  OPEN_ID_PROVIDER_KIND_GOOGLE = 2;
+  OPEN_ID_PROVIDER_KIND_MICROSOFT = 3;
+  OPEN_ID_PROVIDER_KIND_OKTA = 4;
+  OPEN_ID_PROVIDER_KIND_JUMPCLOUD = 5;
+  OPEN_ID_PROVIDER_KIND_ZITADEL = 6;
+}
+
 message AuthInfoResponse {
   string url = 1;
   string csrf_token = 2;
   string nonce = 3;
   optional string button_display_name = 4;
+  OpenIdProviderKind provider_kind = 5;
 }
 
 message AuthCallbackRequest {