diff --git a/src/api/v1/onboarding/registration.rs b/src/api/v1/onboarding/registration.rs
index 1dd1768..1522b2d 100644
--- a/src/api/v1/onboarding/registration.rs
+++ b/src/api/v1/onboarding/registration.rs
@@ -7,6 +7,7 @@ use lettre::message::header::ContentType;
 use lettre::transport::smtp::authentication::Credentials;
 use lettre::{Message, SmtpTransport, Transport};
 use serde::Deserialize;
+use serde_json::json;
 use std::fmt::Debug;
 use std::str::FromStr;
 use tracing::{error, info, instrument, warn};
@@ -26,7 +27,7 @@ pub async fn register(
         Err(e) => {
             let err = format!("Invalid email address: {e}");
             warn!(email = mail.email_address, error = %err);
-            return (StatusCode::BAD_REQUEST, err);
+            return (StatusCode::BAD_REQUEST, Json(json!({"error": err})));
         }
     };
     info!(email = mail.email_address, "RegistrationRequest received");
@@ -55,12 +56,18 @@ pub async fn register(
     match mailer.send(&verification_email) {
         Ok(_) => {
             info!(email = mail.email_address, "Verification email sent");
-            (StatusCode::OK, "Verification email sent".to_string())
+            (
+                StatusCode::OK,
+                Json(json!({"msg":"Verification email sent"})),
+            )
         }
         Err(e) => {
             let err = format!("Failed to send verification email: {e}");
             error!(error = %err);
-            (StatusCode::INTERNAL_SERVER_ERROR, err)
+            (
+                StatusCode::INTERNAL_SERVER_ERROR,
+                Json(json!({"error": err})),
+            )
         }
     }
 }