diff --git a/raystack/frontier/v1beta1/frontier.proto b/raystack/frontier/v1beta1/frontier.proto
index eab89d9b..145b51b3 100644
--- a/raystack/frontier/v1beta1/frontier.proto
+++ b/raystack/frontier/v1beta1/frontier.proto
@@ -1783,6 +1783,9 @@ message ListOrganizationGroupsRequest {
     min_len: 3
   }];
   string state = 3 [(grpc.gateway.protoc_gen_openapiv2.options.openapiv2_field) = {description: "The state of the group to filter by. It can be enabled or disabled."}];
+  
+  repeated string group_ids = 4;
+  bool with_members = 5;
 }
 
 message ListOrganizationGroupsResponse {
@@ -2210,10 +2213,17 @@ message ListProjectServiceUsersResponse {
 
 message ListProjectGroupsRequest {
   string id = 1 [(validate.rules).string.min_len = 3];
+  bool with_roles = 2;
 }
 
 message ListProjectGroupsResponse {
   repeated Group groups = 1;
+
+  message RolePair {
+    string group_id = 1;
+    repeated Role roles = 2;
+  }
+  repeated RolePair role_pairs = 2;
 }
 
 message EnableProjectRequest {
@@ -2373,6 +2383,7 @@ message CreateGroupRequest {
 message GetGroupRequest {
   string id = 1;
   string org_id = 2;
+  bool with_members = 3;
 }
 
 message CreateGroupResponse {
diff --git a/raystack/frontier/v1beta1/models.proto b/raystack/frontier/v1beta1/models.proto
index 12e8d262..7e883c68 100644
--- a/raystack/frontier/v1beta1/models.proto
+++ b/raystack/frontier/v1beta1/models.proto
@@ -88,6 +88,10 @@ message Group {
     description: "The time the group was last updated.",
     example: "\"2023-06-07T05:39:56.961Z\""
   }];
+
+  repeated User users = 10 [
+    (google.api.field_behavior) = OUTPUT_ONLY
+  ];
 }
 
 message Role {