diff --git a/cybsi/cloud/auth/__init__.py b/cybsi/cloud/auth/__init__.py
index 3bf45c8..c944d26 100644
--- a/cybsi/cloud/auth/__init__.py
+++ b/cybsi/cloud/auth/__init__.py
@@ -8,6 +8,12 @@
     APIKeyForm,
     APIKeyView,
 )
+from .limits import (
+    RequestLimitForm,
+    RequestLimitTargetView,
+    RequestLimitView,
+    LimitPeriod,
+)
 from .permission import (
     ResourceAction,
     ResourcePermissionView,
diff --git a/cybsi/cloud/auth/api_key.py b/cybsi/cloud/auth/api_key.py
index 1da14fe..b8e1e2f 100644
--- a/cybsi/cloud/auth/api_key.py
+++ b/cybsi/cloud/auth/api_key.py
@@ -18,6 +18,7 @@
     rfc3339_timestamp,
 )
 from ..pagination import Cursor, Page
+from .limits import RequestLimitForm, RequestLimitView
 from .permission import ResourcePermissionForm, ResourcePermissionView
 from .token import TokenView
 
@@ -196,12 +197,14 @@ class APIKeyForm(JsonObjectForm):
         expires_at: Expiration date.
             The API-Key is automatically disabled after the expiration date.
         description: API-Key description.
+        request_limits: List of API-Key request limits.
     """
 
     def __init__(
         self,
         permissions: Iterable[ResourcePermissionForm],
         *,
+        request_limits: Optional[Iterable[RequestLimitForm]] = None,
         expires_at: Optional[datetime] = None,
         description: Optional[str] = None,
     ):
@@ -210,6 +213,8 @@ def __init__(
             self._data["expiresAt"] = rfc3339_timestamp(expires_at)
         if description is not None:
             self._data["description"] = description
+        if request_limits is not None:
+            self._data["requestLimits"] = [limit.json() for limit in request_limits]
         self._data["permissions"] = [perm.json() for perm in permissions]
 
 
@@ -268,3 +273,8 @@ def revoked(self) -> bool:
     def permissions(self) -> List[ResourcePermissionView]:
         """List of permissions."""
         return [ResourcePermissionView(perm) for perm in self._get("permissions")]
+
+    @property
+    def request_limits(self) -> List[RequestLimitView]:
+        """List of request limits."""
+        return [RequestLimitView(limit) for limit in self._get("requestLimits")]
diff --git a/cybsi/cloud/auth/limits.py b/cybsi/cloud/auth/limits.py
new file mode 100644
index 0000000..b9204aa
--- /dev/null
+++ b/cybsi/cloud/auth/limits.py
@@ -0,0 +1,71 @@
+from enum_tools import document_enum
+
+from ..enum import CybsiAPIEnum
+from ..internal import JsonObjectForm, JsonObjectView
+from .permission import ResourceAction
+from .resource import ResourceRefView
+
+
+@document_enum
+class LimitPeriod(CybsiAPIEnum):
+    """Limit time window."""
+
+    Day = "Day"
+    """Time window with period of one day."""
+
+
+class RequestLimitTargetView(JsonObjectView):
+    """Request limit target."""
+
+    @property
+    def resource(self) -> ResourceRefView:
+        """Resource."""
+        return ResourceRefView(self._get("resource"))
+
+    @property
+    def action(self) -> ResourceAction:
+        """Limited action."""
+        return ResourceAction(self._get("action"))
+
+
+class RequestLimitView(JsonObjectView):
+    """Request limit."""
+
+    @property
+    def target(self) -> RequestLimitTargetView:
+        """Limit target."""
+        return RequestLimitTargetView(self._get("target"))
+
+    @property
+    def limit(self) -> int:
+        """Maximum requests count within time window."""
+        return self._get("limit")
+
+    @property
+    def period(self) -> LimitPeriod:
+        """Time window for limit."""
+        return LimitPeriod(self._get("period"))
+
+
+class RequestLimitForm(JsonObjectForm):
+    """Request limit form.
+
+    Args:
+        resource_id: resource identifier.
+        action: limited action.
+        limit_period: time window for limit.
+        limit: maximum requests count within time window.
+    """
+
+    def __init__(
+        self,
+        *,
+        resource_id: int,
+        action: ResourceAction,
+        limit_period: LimitPeriod,
+        limit: int,
+    ):
+        super().__init__()
+        self._data["target"] = {"resource": {"id": resource_id}, "action": action.value}
+        self._data["limit"] = limit
+        self._data["period"] = limit_period.value
diff --git a/cybsi/cloud/error.py b/cybsi/cloud/error.py
index 882ba4b..8b4a974 100644
--- a/cybsi/cloud/error.py
+++ b/cybsi/cloud/error.py
@@ -199,6 +199,10 @@ class SemanticErrorCodes(CybsiAPIEnum):
     """schemaID parameter can't be changed."""
     SchemaNotFound = "SchemaNotFound"
     """The specified schema is not found"""
+    InvalidRequestLimit = "InvalidRequestLimit"
+    """The specified request limit cannot be set."""
+    LimitSetConflict = "LimitSetConflict"
+    """The limit set has conflicts."""
 
     # Objects
     InvalidKeyFormat = "InvalidKeyFormat"
diff --git a/examples/get_collection_objects_chained.py b/examples/get_collection_objects_chained.py
index 75d06b1..f3b488c 100644
--- a/examples/get_collection_objects_chained.py
+++ b/examples/get_collection_objects_chained.py
@@ -10,8 +10,7 @@
 
         # Retrieve collection schema, it describes all attributes
         # of objects you can encounter in the collection.
-        schema_view = client.iocean.collections.view_schema(
-            collection_id=collection_id)
+        schema_view = client.iocean.collections.view_schema(collection_id=collection_id)
         print(schema_view.schema)
 
         # Retrieve first page of collection objects.