diff --git a/src/kognic/auth/base/auth_client.py b/src/kognic/auth/base/auth_client.py
index 965de08..59801ae 100644
--- a/src/kognic/auth/base/auth_client.py
+++ b/src/kognic/auth/base/auth_client.py
@@ -31,3 +31,9 @@ def expires_at(self):
     @property
     def token(self):
         raise NotImplementedError
+
+    @staticmethod
+    def check_rate_limit(response):
+        if response.status_code == 429:
+            log.error("Client authentication rate limit exceeded! Please slow down.")
+        return response
diff --git a/src/kognic/auth/httpx/async_client.py b/src/kognic/auth/httpx/async_client.py
index 945a61e..98cba71 100644
--- a/src/kognic/auth/httpx/async_client.py
+++ b/src/kognic/auth/httpx/async_client.py
@@ -57,6 +57,8 @@ def __init__(
             grant_type="client_credentials",
             **kwargs,
         )
+        self._oauth_client.register_compliance_hook("access_token_response", AuthClient.check_rate_limit)
+        self._oauth_client.register_compliance_hook("refresh_token_response", AuthClient.check_rate_limit)
 
         self._lock = Lock()
 
diff --git a/src/kognic/auth/requests/auth_session.py b/src/kognic/auth/requests/auth_session.py
index 4958b44..6bf22a1 100644
--- a/src/kognic/auth/requests/auth_session.py
+++ b/src/kognic/auth/requests/auth_session.py
@@ -68,6 +68,8 @@ def __init__(
             token_endpoint=self.token_url,
             **kwargs,
         )
+        self.oauth_session.register_compliance_hook("access_token_response", AuthClient.check_rate_limit)
+        self.oauth_session.register_compliance_hook("refresh_token_response", AuthClient.check_rate_limit)
 
         self._lock = threading.RLock()