diff --git a/src/error.rs b/src/error.rs
index af8f863..c940b53 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -53,6 +53,12 @@ pub struct ApiError {
     message: String,
 }
 
+impl ApiError {
+    pub fn status_code(&self) -> u16 {
+        self.status
+    }
+}
+
 impl Display for ApiError {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         write!(f, "{}: {}", self.status, self.message)
diff --git a/src/jwt.rs b/src/jwt.rs
index 2b8be14..64f688b 100644
--- a/src/jwt.rs
+++ b/src/jwt.rs
@@ -26,4 +26,6 @@ pub(crate) fn decode_jwt(token: &str, hmac_secret: &str) -> Result<Claims, Error
 pub(crate) struct Claims {
     pub prompt: String,
     pub exp: i64,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub iss: Option<String>,
 }
diff --git a/src/tests/jwt.rs b/src/tests/jwt.rs
index b2cb5a6..cc2ba66 100644
--- a/src/tests/jwt.rs
+++ b/src/tests/jwt.rs
@@ -36,6 +36,7 @@ fn decode_jwt_expired_token() {
     let claims = Claims {
         prompt: "expired prompt".to_string(),
         exp: 1, // Expired long ago (Unix epoch)
+        iss: Some("test".to_string()),
     };
     let token = jsonwebtoken::encode(
         &jsonwebtoken::Header::default(),
@@ -54,6 +55,7 @@ fn decode_jwt_valid_token() {
     let claims = Claims {
         prompt: "test prompt".to_string(),
         exp: 9999999999,
+        iss: Some("test".to_string()),
     };
     let token = jsonwebtoken::encode(
         &jsonwebtoken::Header::default(),
@@ -81,6 +83,7 @@ fn message_encrypted_variant_decrypts() {
     let claims = Claims {
         prompt: "encrypted prompt".to_string(),
         exp: 9999999999,
+        iss: Some("test".to_string()),
     };
     let token = jsonwebtoken::encode(
         &jsonwebtoken::Header::default(),