diff --git a/ansys/api/geometry/v0/designs.proto b/ansys/api/geometry/v0/designs.proto
index 59c5396..d5368bb 100644
--- a/ansys/api/geometry/v0/designs.proto
+++ b/ansys/api/geometry/v0/designs.proto
@@ -1,4 +1,4 @@
-// ©2023, ANSYS Inc. Unauthorized use, distribution or duplication is prohibited.
+// ©2023, ANSYS Inc. Unauthorized use, distribution or duplication is prohibited.
 syntax = "proto3";
 package ansys.api.geometry.v0.Designs;
 
@@ -30,6 +30,8 @@ service Designs{
   rpc Export(ExportRequest) returns(ExportResponse);
 
   rpc GetAsJson(GetAsJsonRequest) returns(GetAsJsonResponse);
+
+  rpc GetAssembly(EntityIdentifier) returns (GetAssemblyResponse);
 }
 
 message GetAllResponse{
@@ -65,6 +67,22 @@ message ExportResponse {
 message GetAsJsonRequest {
   string id=1;
 }
+
 message GetAsJsonResponse {
   string json=1;
-}
\ No newline at end of file
+}
+
+message CoordinateSystemList {
+  repeated CoordinateSystem coordinate_systems=1;
+}
+
+message GetAssemblyResponse {
+  repeated Part parts=1;
+  repeated Component transformed_parts=2;
+  repeated Component components=3;
+  repeated Body bodies=4;
+  repeated Material materials=5;
+  repeated NamedSelection named_selections=6;
+  map <string, CoordinateSystemList> component_coord_systems=7;
+  map <string, int32> component_shared_topologies=8;
+}
diff --git a/ansys/api/geometry/v0/models.proto b/ansys/api/geometry/v0/models.proto
index a6a46b6..4350691 100644
--- a/ansys/api/geometry/v0/models.proto
+++ b/ansys/api/geometry/v0/models.proto
@@ -1,4 +1,4 @@
-// ©2023, ANSYS Inc. Unauthorized use, distribution or duplication is prohibited.
+// ©2023, ANSYS Inc. Unauthorized use, distribution or duplication is prohibited.
 syntax = "proto3";
 package ansys.api.geometry.v0;
 
@@ -107,6 +107,7 @@ message Body{
   Matrix transform_to_master = 6;
   BodyMasterNullable master = 7;
   string master_id = 8;
+  string parent_id = 9;
 }
 
 //
@@ -146,6 +147,9 @@ message Component{
   string name = 2;
   Part part_occurrence = 3;
   Matrix placement =4;
+  string master_id=5;
+  string parent_id=6;
+  Part part_master=7;
 }
 
 //