diff --git a/proto/camino/api.proto b/proto/camino/api.proto
index ea85155..a7006eb 100644
--- a/proto/camino/api.proto
+++ b/proto/camino/api.proto
@@ -10,6 +10,7 @@ service CaminoService {
   rpc ListClasses(ListClassesRequest) returns (ListClassesResponse);
   rpc CreateObject(CreateObjectRequest) returns (CreateObjectResponse);
   rpc GetObject(GetObjectRequest) returns (GetObjectResponse);
+  rpc ListObjects(ListObjectsRequest) returns (ListObjectsResponse);
   rpc SetField(SetFieldRequest) returns (SetFieldResponse);
   rpc AddEdge(AddEdgeRequest) returns (AddEdgeResponse);
   rpc ListEdges(ListEdgesRequest) returns (ListEdgesResponse);
@@ -104,6 +105,14 @@ message GetObjectResponse {
   CaminoObject object = 1;
 }
 
+message ListObjectsRequest {
+  string class_id = 1;
+}
+
+message ListObjectsResponse {
+  repeated CaminoObject objects = 1;
+}
+
 message SetFieldRequest {
   string object_id = 1;
   string field_name = 2;