diff --git a/tools/chatgui/src/member_files/batch.cpp b/tools/chatgui/src/member_files/batch.cpp
index 63e435e3..ecfcc400 100644
--- a/tools/chatgui/src/member_files/batch.cpp
+++ b/tools/chatgui/src/member_files/batch.cpp
@@ -12,7 +12,6 @@
 #include <cstring>
 extern "C" {
 #include "member_files/member_files.h"
-#include "mem.h"
 #include "debug_config.h"
 }
 
@@ -35,10 +34,7 @@ MemberFileBatch::~MemberFileBatch() {
 }
 
 void MemberFileBatch::cancelRequest(quint64 id) {
-    if (!id || !gui_bridge_is_uasync_ready()) return;
-    auto* q = (mf_cancel_request*)u_calloc(1, sizeof(mf_cancel_request));
-    if (!q) { DEBUG_ERROR(DEBUG_CATEGORY_MEDIA, "file batch: cancel allocation failed id=%llu", (unsigned long long)id); return; }
-    q->inst = gui_bridge_get_inst(); q->id = id; gui_bridge_post_uasync_fn(member_files_gui_cancel, q);
+    if (id) gui_bridge_member_files_cancel(id);
 }
 
 // Сначала проверяем всё локальное дерево; до успешного обхода сервер не изменяется.
@@ -118,20 +114,16 @@ void MemberFileBatch::start(const QList<MemberFileEntry>& entries, const QString
 }
 
 void MemberFileBatch::request(uint8_t command) {
-    auto* q = (mf_gui_request*)u_calloc(1, sizeof(mf_gui_request));
-    if (!q || !gui_bridge_is_uasync_ready()) {
-        u_free(q); finish(text("Unable to request directory")); return;
-    }
     const auto& entry = m_queue.first();
-    q->inst = gui_bridge_get_inst(); q->group = m_group; q->server = m_server;
-    auto& r = q->message; r.kind = MF_REQUEST; r.command = command; r.owner = m_owner; r.request_id = nextId();
+    mf_message r{}; r.kind = MF_REQUEST; r.command = command; r.owner = m_owner; r.request_id = nextId();
     memcpy(r.path, entry.remote.toUtf8().constData(), entry.remote.toUtf8().size());
     if ((m_mode == Download || command == MF_REMOVE_PATH || command == MF_LIST) && entry.version.size() == 16)
         memcpy(r.version, entry.version.constData(), 16);
-    r.cursor = command == MF_LIST ? entry.cursor : 0; m_command = command; m_request = r.request_id;
+    r.cursor = command == MF_LIST ? entry.cursor : 0;
+    if (gui_bridge_member_files_request(m_group, m_server, &r) < 0) { finish(text("Unable to request directory")); return; }
+    m_command = command; m_request = r.request_id;
     DEBUG_TRACE(DEBUG_CATEGORY_MEDIA, "file batch: request id=%llu command=%s path=%s cursor=%llu",
         (unsigned long long)m_request, mf_command_text(command), r.path, (unsigned long long)r.cursor);
-    gui_bridge_post_uasync_fn(member_files_gui_request, q);
 }
 
 void MemberFileBatch::next() {
@@ -241,15 +233,14 @@ bool MemberFileBatch::response(const mf_message& r) {
 }
 
 void MemberFileBatch::copyFile(const QByteArray& version) {
-    auto* q = (mf_transfer_request*)u_calloc(1, sizeof(mf_transfer_request));
-    if (!q || !gui_bridge_is_uasync_ready()) { u_free(q); finish(text("Unable to start transfer")); return; }
     const auto& e = m_queue.first();
-    q->inst = gui_bridge_get_inst(); q->id = nextId(); q->group = m_group; q->server = m_server; q->owner = m_owner;
-    q->upload = m_mode == Upload;
-    memcpy(q->remote, e.remote.toUtf8().constData(), e.remote.toUtf8().size());
-    memcpy(q->local, e.local.toUtf8().constData(), e.local.toUtf8().size());
-    if (version.size() == 16) memcpy(q->version, version.constData(), 16);
-    m_transfer = q->id; gui_bridge_post_uasync_fn(member_files_gui_transfer, q);
+    mf_transfer_request q{}; q.id = nextId(); q.group = m_group; q.server = m_server; q.owner = m_owner;
+    q.upload = m_mode == Upload;
+    memcpy(q.remote, e.remote.toUtf8().constData(), e.remote.toUtf8().size());
+    memcpy(q.local, e.local.toUtf8().constData(), e.local.toUtf8().size());
+    if (version.size() == 16) memcpy(q.version, version.constData(), 16);
+    if (gui_bridge_member_files_transfer(&q) < 0) { finish(text("Unable to start transfer")); return; }
+    m_transfer = q.id;
 }
 
 bool MemberFileBatch::transfer(const uint8_t* data, int length) {
diff --git a/tools/chatgui/src/member_files/browser.cpp b/tools/chatgui/src/member_files/browser.cpp
index 25419053..a583f0f3 100644
--- a/tools/chatgui/src/member_files/browser.cpp
+++ b/tools/chatgui/src/member_files/browser.cpp
@@ -42,7 +42,6 @@
 #include <cstring>
 extern "C" {
 #include "member_files/member_files.h"
-#include "mem.h"
 #include "debug_config.h"
 #include "json_flat.h"
 }
@@ -284,26 +283,18 @@ void MemberFileBrowser::updateActions() {
 }
 
 bool MemberFileBrowser::post(mf_message& message) {
-    if (!m_group || !server() || !gui_bridge_is_uasync_ready()) {
-        DEBUG_DEBUG(DEBUG_CATEGORY_MEDIA, "member_files: GUI post rejected cmd=%s group=%llx server=%llx ready=%d",
-                    mf_command_text(message.command), (unsigned long long)m_group, (unsigned long long)server(), gui_bridge_is_uasync_ready());
-        return false;
-    }
-    auto* q = (mf_gui_request*)u_calloc(1, sizeof(mf_gui_request));
-    if (!q) { DEBUG_ERROR(DEBUG_CATEGORY_MEDIA, "file browser: request allocation failed"); return false; }
     message.request_id = requestId(); message.kind = MF_REQUEST;
-    q->inst = gui_bridge_get_inst(); q->group = m_group; q->server = server(); q->message = message;
+    if (gui_bridge_member_files_request(m_group, server(), &message) < 0) {
+        m_status->setText(text("Unable to request directory")); return false;
+    }
     DEBUG_DEBUG(DEBUG_CATEGORY_MEDIA, "member_files: GUI post id=%llu cmd=%s group=%llx server=%llx owner=%llx path=%s",
         (unsigned long long)message.request_id, mf_command_text(message.command), (unsigned long long)m_group,
         (unsigned long long)server(), (unsigned long long)message.owner, message.path);
-    gui_bridge_post_uasync_fn(member_files_gui_request, q); return true;
+    return true;
 }
 
 void MemberFileBrowser::cancelRequest(quint64 id) {
-    if (!id || !gui_bridge_is_uasync_ready()) return;
-    auto* q = (mf_cancel_request*)u_calloc(1, sizeof(mf_cancel_request));
-    if (!q) { DEBUG_ERROR(DEBUG_CATEGORY_MEDIA, "file browser: cancel allocation failed"); return; }
-    q->inst = gui_bridge_get_inst(); q->id = id; gui_bridge_post_uasync_fn(member_files_gui_cancel, q);
+    if (id) gui_bridge_member_files_cancel(id);
 }
 
 void MemberFileBrowser::requestQuota() {
@@ -596,19 +587,17 @@ void MemberFileBrowser::exportFile(bool clipboard, const QString& destination) {
 }
 
 bool MemberFileBrowser::startTransfer(const QString& remote, const QString& local, bool uploading, const QByteArray& version) {
-    auto* q = (mf_transfer_request*)u_calloc(1, sizeof(mf_transfer_request));
-    if (!q) { DEBUG_ERROR(DEBUG_CATEGORY_MEDIA, "file browser: transfer allocation failed"); return false; }
-    if (!copyPath(q->remote, remote) || !copyPath(q->local, local) || !mf_path_valid(q->remote, 0) || !gui_bridge_is_uasync_ready()) {
-        DEBUG_WARN(DEBUG_CATEGORY_MEDIA, "file browser: transfer rejected remote=%s local=%s ready=%d",
-                   qPrintable(remote), qPrintable(local), gui_bridge_is_uasync_ready());
-        u_free(q); m_status->setText(text("Invalid path or chat is stopped")); return false;
+    mf_transfer_request q{};
+    if (!copyPath(q.remote, remote) || !copyPath(q.local, local) || !mf_path_valid(q.remote, 0)) {
+        DEBUG_WARN(DEBUG_CATEGORY_MEDIA, "file browser: transfer rejected remote=%s local=%s", qPrintable(remote), qPrintable(local));
+        m_status->setText(text("Invalid path or chat is stopped")); return false;
     }
-    q->inst = gui_bridge_get_inst(); q->id = requestId(); q->group = m_group; q->server = server(); q->owner = owner(); q->upload = uploading;
-    if (version.size() == 16) memcpy(q->version, version.constData(), 16);
-    m_transferId = q->id; m_transferGroup = q->group; m_transferServer = q->server; m_local = local;
+    q.id = requestId(); q.group = m_group; q.server = server(); q.owner = owner(); q.upload = uploading;
+    if (version.size() == 16) memcpy(q.version, version.constData(), 16);
+    if (gui_bridge_member_files_transfer(&q) < 0) { m_status->setText(text("Unable to start transfer")); return false; }
+    m_transferId = q.id; m_transferGroup = q.group; m_transferServer = q.server; m_local = local;
     if (uploading) m_openAfter = false;
     m_progress->setRange(0, 0); m_progress->show(); m_status->setText(text("Preparing transfer…")); updateActions();
-    gui_bridge_post_uasync_fn(member_files_gui_transfer, q);
     return true;
 }