diff --git a/crates/api_common/src/person.rs b/crates/api_common/src/person.rs
index 857e52036..263fd584c 100644
--- a/crates/api_common/src/person.rs
+++ b/crates/api_common/src/person.rs
@@ -51,11 +51,14 @@ pub struct Register {
   pub answer: Option<String>,
 }
 
+#[skip_serializing_none]
 #[derive(Debug, Serialize, Deserialize, Clone, Default)]
 #[cfg_attr(feature = "full", derive(TS))]
 #[cfg_attr(feature = "full", ts(export))]
 /// Fetches a Captcha item.
-pub struct GetCaptcha {}
+pub struct GetCaptcha {
+  pub auth: Option<Sensitive<String>>,
+}
 
 #[skip_serializing_none]
 #[derive(Debug, Serialize, Deserialize, Clone)]
diff --git a/crates/api_common/src/site.rs b/crates/api_common/src/site.rs
index e81186b10..2d3ebbe0b 100644
--- a/crates/api_common/src/site.rs
+++ b/crates/api_common/src/site.rs
@@ -304,11 +304,14 @@ pub struct GetSiteResponse {
   pub custom_emojis: Vec<CustomEmojiView>,
 }
 
+#[skip_serializing_none]
 #[derive(Debug, Serialize, Deserialize, Clone)]
 #[cfg_attr(feature = "full", derive(TS))]
 #[cfg_attr(feature = "full", ts(export))]
 /// Fetches the federated instances for your site.
-pub struct GetFederatedInstances {}
+pub struct GetFederatedInstances {
+  pub auth: Option<Sensitive<String>>,
+}
 
 #[skip_serializing_none]
 #[derive(Debug, Serialize, Deserialize, Clone)]