diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..e9048c4
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "helpers/hv2-api"]
+	path = helpers/hv2-api
+	url = ../hv2-api
diff --git a/helpers/hv2-api b/helpers/hv2-api
new file mode 160000
index 0000000..f33d4f4
--- /dev/null
+++ b/helpers/hv2-api
@@ -0,0 +1 @@
+Subproject commit f33d4f4d259f40c39d705b048d29a700ca320174