diff --git a/api/foreign_model.go b/api/foreign_model.go
new file mode 100644
index 0000000..ca87e2f
--- /dev/null
+++ b/api/foreign_model.go
@@ -0,0 +1,19 @@
+package api
+
+type ForeignModelTypes string
+
+const (
+	ForeignModelTypesResource ForeignModelTypes = "Resource"
+	ForeignModelTypesSecret   ForeignModelTypes = "Secret"
+	ForeignModelTypesFolder                     = "Folder"
+	ForeignModelTypesComment                    = "Comment"
+	ForeignModelTypesTag                        = "Tag"
+)
+
+func (s ForeignModelTypes) IsValid() bool {
+	switch s {
+	case ForeignModelTypesResource, ForeignModelTypesSecret, ForeignModelTypesFolder, ForeignModelTypesComment, ForeignModelTypesTag:
+		return true
+	}
+	return false
+}