diff --git a/lib/xos-synchronizer/xossynchronizer/loadmodels.py b/lib/xos-synchronizer/xossynchronizer/loadmodels.py
new file mode 100644
index 0000000..7e82ac9
--- /dev/null
+++ b/lib/xos-synchronizer/xossynchronizer/loadmodels.py
@@ -0,0 +1,60 @@
+# Copyright 2017-present Open Networking Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+from xosconfig import Config
+from multistructlog import create_logger
+
+log = create_logger(Config().get("logging"))
+
+
+class ModelLoadClient(object):
+    def __init__(self, api):
+        self.api = api
+
+    def upload_models(self, name, dir, version="unknown"):
+        request = self.api.dynamicload_pb2.LoadModelsRequest(name=name, version=version)
+
+        for fn in os.listdir(dir):
+            if fn.endswith(".xproto"):
+                item = request.xprotos.add()
+                item.filename = fn
+                item.contents = open(os.path.join(dir, fn)).read()
+
+        models_fn = os.path.join(dir, "models.py")
+        if os.path.exists(models_fn):
+            item = request.decls.add()
+            item.filename = "models.py"
+            item.contents = open(models_fn).read()
+
+        attic_dir = os.path.join(dir, "attic")
+        if os.path.exists(attic_dir):
+            log.warn(
+                "Attics are deprecated, please use the legacy=True option in xProto"
+            )
+            for fn in os.listdir(attic_dir):
+                if fn.endswith(".py"):
+                    item = request.attics.add()
+                    item.filename = fn
+                    item.contents = open(os.path.join(attic_dir, fn)).read()
+
+        api_convenience_dir = os.path.join(dir, "convenience")
+        if os.path.exists(api_convenience_dir):
+            for fn in os.listdir(api_convenience_dir):
+                if fn.endswith(".py") and "test" not in fn:
+                    item = request.convenience_methods.add()
+                    item.filename = fn
+                    item.contents = open(os.path.join(api_convenience_dir, fn)).read()
+
+        result = self.api.dynamicload.LoadModels(request)