diff --git a/swh/objstorage/__init__.py b/swh/objstorage/__init__.py
index 02d3b0f..d617b58 100644
--- a/swh/objstorage/__init__.py
+++ b/swh/objstorage/__init__.py
@@ -1,4 +1,51 @@
 from .objstorage import ObjStorage
 from .objstorage_pathslicing import PathSlicingObjStorage
+from .api.client import RemoteObjStorage
+from .multiplexer import MultiplexerObjStorage
+from .multiplexer.filter import add_filters
 
-__all__ = [ObjStorage, PathSlicingObjStorage]
+# TODO remove PathSlicingObjStorage from this list once the config
+# loading will be updated and no hardcoded objstorage types should
+# remains.
+__all__ = ['get_objstorage', 'ObjStorage', 'PathSlicingObjStorage']
+
+_STORAGE_CLASSES = {
+    'pathslicing': PathSlicingObjStorage,
+    'remote': RemoteObjStorage,
+}
+
+
+def get_objstorage(cls, args):
+    """ Create an ObjStorage using the given implementation class.
+
+    Args:
+        cls (str): objstorage class unique key contained in the
+            _STORAGE_CLASSES dict.
+        args (dict): arguments for the required class of objstorage
+            that must match exactly the one in the `__init__` method of the
+            class.
+    Returns:
+        subclass of ObjStorage that match the given `storage_class` argument.
+    Raises:
+        ValueError: if the given storage class is not a valid objstorage
+            key.
+    """
+    try:
+        return _STORAGE_CLASSES[cls](**args)
+    except KeyError:
+        raise ValueError('Storage class %s does not exists' % cls)
+
+
+def _construct_filtered_objstorage(storage_conf, filters_conf):
+    return add_filters(
+        get_objstorage(**storage_conf),
+        filters_conf
+    )
+_STORAGE_CLASSES['filtered'] = _construct_filtered_objstorage
+
+
+def _construct_multiplexer_objstorage(objstorages):
+    storages = [get_objstorage(**conf)
+                for conf in objstorages]
+    return MultiplexerObjStorage(storages)
+_STORAGE_CLASSES['multiplexer'] = _construct_multiplexer_objstorage