diff --git a/robosats/middleware.py b/robosats/middleware.py
index 12739db5..27b395a6 100644
--- a/robosats/middleware.py
+++ b/robosats/middleware.py
@@ -9,6 +9,7 @@ from django.utils.deprecation import MiddlewareMixin
 from django.http import JsonResponse
 from rest_framework.authtoken.models import Token
 
+from api.errors import new_error
 from api.nick_generator.nick_generator import NickGenerator
 from api.utils import base91_to_hex, hex_to_base91, is_valid_token, validate_pgp_keys
 
@@ -75,12 +76,7 @@ class RobotTokenSHA256AuthenticationMiddleWare:
             return response
 
         if not is_valid_token(token_sha256_b91):
-            return JsonResponse(
-                {
-                    "bad_request": "Robot token SHA256 was provided in the header. However it is not a valid 39 or 40 characters Base91 string."
-                },
-                status=400,
-            )
+            return JsonResponse(new_error(7000), status=400)
 
         # Check if it is an existing robot.
         try:
@@ -127,12 +123,7 @@ class RobotTokenSHA256AuthenticationMiddleWare:
                 encrypted_private_key = request.COOKIES.get("encrypted_private_key", "")
 
             if not public_key or not encrypted_private_key or not nostr_pubkey:
-                return JsonResponse(
-                    {
-                        "bad_request": "On the first request to a RoboSats coordinator, you must provide as well a valid public and encrypted private PGP keys and a nostr pubkey"
-                    },
-                    status=400,
-                )
+                return JsonResponse(new_error(7001), status=400)
 
             (
                 valid,
@@ -141,7 +132,7 @@ class RobotTokenSHA256AuthenticationMiddleWare:
                 encrypted_private_key,
             ) = validate_pgp_keys(public_key, encrypted_private_key)
             if not valid:
-                return JsonResponse({"bad_request": bad_keys_context}, status=400)
+                return JsonResponse(new_error(7002, {"bad_keys_context": bad_keys_context}), status=400)
 
             # Hash the token_sha256, only 1 iteration.
             # This is the second SHA256 of the user token, aka RoboSats ID