diff --git a/keras_core/initializers/initializer.py b/keras_core/initializers/initializer.py
index fcd46d56d..825a362aa 100644
--- a/keras_core/initializers/initializer.py
+++ b/keras_core/initializers/initializer.py
@@ -1,6 +1,8 @@
 import warnings
+from keras_core.api_export import keras_core_export
 
 
+@keras_core_export(["keras_core.Initializer", "keras_core.initializers.Initializer"])
 class Initializer:
     """Initializer base class: all Keras initializers inherit from this class.
 
diff --git a/keras_core/layers/input_spec.py b/keras_core/layers/input_spec.py
index 2b2701178..b895d043c 100644
--- a/keras_core/layers/input_spec.py
+++ b/keras_core/layers/input_spec.py
@@ -1,7 +1,9 @@
 from keras_core import backend
 from tensorflow import nest
+from keras_core.api_export import keras_core_export
 
 
+@keras_core_export(["keras_core.InputSpec", "keras_core.layers.InputSpec"])
 class InputSpec:
     """Specifies the rank, dtype and shape of every input to a layer.
 
diff --git a/keras_core/layers/layer.py b/keras_core/layers/layer.py
index 09cb19348..5683490af 100644
--- a/keras_core/layers/layer.py
+++ b/keras_core/layers/layer.py
@@ -21,6 +21,7 @@ from keras_core.utils.tracking import Tracker
 from keras_core.metrics.metric import Metric
 from keras_core import utils
 from keras_core.layers import input_spec
+from keras_core.api_export import keras_core_export
 from tensorflow import nest
 from tensorflow import keras as tf_keras
 import numpy as np
@@ -29,6 +30,7 @@ import threading
 import collections
 
 
+@keras_core_export(["keras_core.Layer", "keras_core.layers.Layer"])
 class Layer(Operation):
     def __init__(self, trainable=True, dtype=None, name=None):
         super().__init__(name=name)
diff --git a/keras_core/losses/loss.py b/keras_core/losses/loss.py
index 79e5b2d4a..e50693609 100644
--- a/keras_core/losses/loss.py
+++ b/keras_core/losses/loss.py
@@ -1,8 +1,10 @@
 from keras_core import operations as ops
 from keras_core import backend
 from keras_core.utils.naming import auto_name
+from keras_core.api_export import keras_core_export
 
 
+@keras_core_export(["keras_core.Loss", "keras_core.losses.Loss"])
 class Loss:
     def __init__(self, name=None, reduction="sum_over_batch_size"):
         self.name = name or auto_name(self.__class__.__name__)
diff --git a/keras_core/metrics/metric.py b/keras_core/metrics/metric.py
index c0c5d4c1f..4b87b6972 100644
--- a/keras_core/metrics/metric.py
+++ b/keras_core/metrics/metric.py
@@ -1,8 +1,10 @@
 from keras_core import backend
 from keras_core.utils.tracking import Tracker
 from keras_core.utils.naming import auto_name
+from keras_core.api_export import keras_core_export
 
 
+@keras_core_export(["keras_core.Metric", "keras_core.metrics.Metric"])
 class Metric:
     def __init__(self, dtype=None, name=None):
         self.name = name or auto_name(self.__class__.__name__)
diff --git a/keras_core/models/sequential.py b/keras_core/models/sequential.py
index ec649d976..018548242 100644
--- a/keras_core/models/sequential.py
+++ b/keras_core/models/sequential.py
@@ -1,5 +1,8 @@
+from keras_core.api_export import keras_core_export
+from keras_core.models.model import Model
 
 
+@keras_core_export(["keras_core.Sequential", "keras_core.models.Sequential"])
 class Sequential(Model):
     def __init__(self, layers, trainable=True, name=None):
         pass
diff --git a/keras_core/optimizers/optimizer.py b/keras_core/optimizers/optimizer.py
index a886d8739..2de337b57 100644
--- a/keras_core/optimizers/optimizer.py
+++ b/keras_core/optimizers/optimizer.py
@@ -4,10 +4,12 @@ from keras_core.utils.tracking import Tracker
 from keras_core import initializers
 from keras_core.optimizers.schedules import learning_rate_schedule
 from keras_core.utils.naming import auto_name
+from keras_core.api_export import keras_core_export
 import re
 import warnings
 
 
+@keras_core_export(["keras_core.Optimizer", "keras_core.optimizers.Optimizer"])
 class Optimizer:
     # TODO: support jit_compile
     def __init__(
diff --git a/keras_core/regularizers/regularizers.py b/keras_core/regularizers/regularizers.py
index 82d1f61f4..32b9f2e0c 100644
--- a/keras_core/regularizers/regularizers.py
+++ b/keras_core/regularizers/regularizers.py
@@ -3,7 +3,7 @@ from keras_core import operations as ops
 from keras_core.api_export import keras_core_export
 
 
-@keras_core_export("keras_core.regularizers.Regularizer")
+@keras_core_export(["keras_core.Regularizer", "keras_core.regularizers.Regularizer"])
 class Regularizer:
     """Regularizer base class.