diff --git a/td/generate/scheme/td_api.tl b/td/generate/scheme/td_api.tl
index c39ff1d39..fcb29b9ea 100644
--- a/td/generate/scheme/td_api.tl
+++ b/td/generate/scheme/td_api.tl
@@ -1201,6 +1201,10 @@ loginUrlInfoOpen url:string skip_confirm:Bool = LoginUrlInfo;
 loginUrlInfoRequestConfirmation url:string domain:string bot_user_id:int53 request_write_access:Bool = LoginUrlInfo;
 
 
+//@description Contains information about URL to be opened in web view @query_id Unique identifier for the web view opening query @url The URL to open in web view
+webViewInfo query_id:int64 url:string = WebViewInfo;
+
+
 //@description Contains information about a message thread
 //@chat_id Identifier of the chat to which the message thread belongs
 //@message_thread_id Message thread identifier, unique within the chat
@@ -4865,6 +4869,15 @@ getWebViewUrl bot_user_id:int53 url:string theme:themeParameters = HttpUrl;
 //@bot_user_id Identifier of the target bot @button_text Text of the keyboardButtonTypeWebView button, which opened the web view @data Received data
 sendWebViewData bot_user_id:int53 button_text:string data:string = Ok;
 
+//@description Informs TDLib that a web view is being opened from attach menu, bot menu, internalLinkTypeAttachMenuBot links, or an inlineKeyboardButtonTypeWebView button
+//@chat_id Identifier of the chat in which web view is opened. Web view can be opened only in private chats for now
+//@bot_user_id Identifier of the target bot, providing web view
+//@url The URL from the inlineKeyboardButtonTypeWebView button or the internalLinkTypeAttachMenuBot link, or an empty string otherwise
+//@from_bot_menu Pass true if the web view is opened from bot menu
+//@theme Preferred web view theme; pass null to use the default theme
+//@reply_to_message_id Identifier of the message to reply to by web view-generated message or 0
+openWebView chat_id:int53 bot_user_id:int53 url:string from_bot_menu:Bool theme:themeParameters reply_to_message_id:int53 = WebViewInfo;
+
 //@description Sets the result of interaction with web view and sends corresponding message on behalf of the user to the chat from which the query originated; for bots only
 //@web_view_query_id Identifier of the web view query
 //@result The result of the query
diff --git a/td/telegram/AttachMenuManager.cpp b/td/telegram/AttachMenuManager.cpp
index efe03d3ad..bfd80f072 100644
--- a/td/telegram/AttachMenuManager.cpp
+++ b/td/telegram/AttachMenuManager.cpp
@@ -6,6 +6,7 @@
 //
 #include "td/telegram/AttachMenuManager.h"
 
+#include "td/telegram/AccessRights.h"
 #include "td/telegram/AuthManager.h"
 #include "td/telegram/ContactsManager.h"
 #include "td/telegram/Dependencies.h"
@@ -14,8 +15,10 @@
 #include "td/telegram/files/FileId.hpp"
 #include "td/telegram/files/FileManager.h"
 #include "td/telegram/logevent/LogEvent.h"
+#include "td/telegram/MessagesManager.h"
 #include "td/telegram/Td.h"
 #include "td/telegram/TdDb.h"
+#include "td/telegram/ThemeManager.h"
 
 #include "td/utils/algorithm.h"
 #include "td/utils/buffer.h"
@@ -25,6 +28,80 @@
 
 namespace td {
 
+class RequestWebViewQuery final : public Td::ResultHandler {
+  Promise<td_api::object_ptr<td_api::webViewInfo>> promise_;
+  DialogId dialog_id_;
+  bool from_attach_menu_ = false;
+
+ public:
+  explicit RequestWebViewQuery(Promise<td_api::object_ptr<td_api::webViewInfo>> &&promise)
+      : promise_(std::move(promise)) {
+  }
+
+  void send(DialogId dialog_id, tl_object_ptr<telegram_api::InputUser> &&input_user, string &&url, bool from_bot_menu,
+            td_api::object_ptr<td_api::themeParameters> &&theme, MessageId reply_to_message_id, bool silent) {
+    dialog_id_ = dialog_id;
+
+    int32 flags = 0;
+
+    auto input_peer = td_->messages_manager_->get_input_peer(dialog_id, AccessRights::Write);
+    CHECK(input_peer != nullptr);
+
+    string start_parameter;
+    if (begins_with(url, "start://")) {
+      start_parameter = url.substr(8);
+      url = string();
+
+      flags |= telegram_api::messages_requestWebView::START_PARAM_MASK;
+    } else if (!url.empty()) {
+      flags |= telegram_api::messages_requestWebView::URL_MASK;
+    } else if (from_bot_menu) {
+      flags |= telegram_api::messages_requestWebView::FROM_BOT_MENU_MASK;
+    } else {
+      from_attach_menu_ = true;
+    }
+
+    tl_object_ptr<telegram_api::dataJSON> theme_parameters;
+    if (theme != nullptr) {
+      theme_parameters = make_tl_object<telegram_api::dataJSON>(string());
+      theme_parameters->data_ = ThemeManager::get_theme_parameters_json_string(theme, false);
+
+      flags |= telegram_api::messages_requestWebView::THEME_PARAMS_MASK;
+    }
+
+    if (reply_to_message_id.is_valid()) {
+      flags |= telegram_api::messages_requestWebView::REPLY_TO_MSG_ID_MASK;
+    }
+
+    if (silent) {
+      flags |= telegram_api::messages_requestWebView::SILENT_MASK;
+    }
+
+    send_query(G()->net_query_creator().create(telegram_api::messages_requestWebView(
+        flags, false /*ignored*/, false /*ignored*/, std::move(input_peer), std::move(input_user), url, start_parameter,
+        std::move(theme_parameters), reply_to_message_id.get_server_message_id().get())));
+  }
+
+  void on_result(BufferSlice packet) final {
+    auto result_ptr = fetch_result<telegram_api::messages_requestWebView>(packet);
+    if (result_ptr.is_error()) {
+      return on_error(result_ptr.move_as_error());
+    }
+
+    auto ptr = result_ptr.move_as_ok();
+    promise_.set_value(td_api::make_object<td_api::webViewInfo>(ptr->query_id_, ptr->url_));
+  }
+
+  void on_error(Status status) final {
+    if (!td_->messages_manager_->on_get_dialog_error(dialog_id_, status, "RequestWebViewQuery")) {
+      if (from_attach_menu_) {
+        td_->attach_menu_manager_->reload_attach_menu_bots(Promise<Unit>());
+      }
+    }
+    promise_.set_error(std::move(status));
+  }
+};
+
 class GetAttachMenuBotsQuery final : public Td::ResultHandler {
   Promise<telegram_api::object_ptr<telegram_api::AttachMenuBots>> promise_;
 
@@ -315,6 +392,50 @@ bool AttachMenuManager::is_active() const {
   return !G()->close_flag() && td_->auth_manager_->is_authorized() && !td_->auth_manager_->is_bot();
 }
 
+void AttachMenuManager::request_web_view(DialogId dialog_id, UserId bot_user_id, MessageId reply_to_message_id,
+                                         string &&url, bool from_bot_menu,
+                                         td_api::object_ptr<td_api::themeParameters> &&theme,
+                                         Promise<td_api::object_ptr<td_api::webViewInfo>> &&promise) {
+  TRY_STATUS_PROMISE(promise, td_->contacts_manager_->get_bot_data(bot_user_id));
+  TRY_RESULT_PROMISE(promise, input_user, td_->contacts_manager_->get_input_user(bot_user_id));
+
+  if (!td_->messages_manager_->have_dialog_force(dialog_id, "request_web_view")) {
+    return promise.set_error(Status::Error(400, "Chat not found"));
+  }
+
+  switch (dialog_id.get_type()) {
+    case DialogType::User:
+      // ok
+      break;
+    case DialogType::Chat:
+    case DialogType::Channel:
+    case DialogType::SecretChat:
+      return promise.set_error(Status::Error(400, "Web apps can be opened only in private chats"));
+    case DialogType::None:
+    default:
+      UNREACHABLE();
+  }
+
+  if (from_bot_menu && !url.empty()) {
+    return promise.set_error(Status::Error(400, "URL can't be specified when web app is opened from bot menu"));
+  }
+
+  if (!td_->messages_manager_->have_input_peer(dialog_id, AccessRights::Write)) {
+    return promise.set_error(Status::Error(400, "Have no write access to the chat"));
+  }
+
+  if (!reply_to_message_id.is_valid() || !reply_to_message_id.is_server() ||
+      !td_->messages_manager_->have_message_force({dialog_id, reply_to_message_id}, "request_web_view")) {
+    reply_to_message_id = MessageId();
+  }
+
+  bool silent = td_->messages_manager_->get_dialog_silent_send_message(dialog_id);
+
+  td_->create_handler<RequestWebViewQuery>(std::move(promise))
+      ->send(dialog_id, std::move(input_user), std::move(url), from_bot_menu, std::move(theme), reply_to_message_id,
+             silent);
+}
+
 Result<AttachMenuManager::AttachMenuBot> AttachMenuManager::get_attach_menu_bot(
     tl_object_ptr<telegram_api::attachMenuBot> &&bot) const {
   UserId user_id(bot->bot_id_);
diff --git a/td/telegram/AttachMenuManager.h b/td/telegram/AttachMenuManager.h
index 9c599c6d9..aae8d7e5b 100644
--- a/td/telegram/AttachMenuManager.h
+++ b/td/telegram/AttachMenuManager.h
@@ -6,7 +6,9 @@
 //
 #pragma once
 
+#include "td/telegram/DialogId.h"
 #include "td/telegram/files/FileId.h"
+#include "td/telegram/MessageId.h"
 #include "td/telegram/td_api.h"
 #include "td/telegram/telegram_api.h"
 #include "td/telegram/UserId.h"
@@ -27,6 +29,10 @@ class AttachMenuManager final : public Actor {
 
   void init();
 
+  void request_web_view(DialogId dialog_id, UserId bot_user_id, MessageId reply_to_message_id, string &&url,
+                        bool from_bot_menu, td_api::object_ptr<td_api::themeParameters> &&theme,
+                        Promise<td_api::object_ptr<td_api::webViewInfo>> &&promise);
+
   void reload_attach_menu_bots(Promise<Unit> &&promise);
 
   void get_attach_menu_bot(UserId user_id, Promise<td_api::object_ptr<td_api::attachMenuBot>> &&promise);
diff --git a/td/telegram/MessagesManager.cpp b/td/telegram/MessagesManager.cpp
index b726ad1d4..991fd34a4 100644
--- a/td/telegram/MessagesManager.cpp
+++ b/td/telegram/MessagesManager.cpp
@@ -25019,6 +25019,12 @@ bool MessagesManager::is_anonymous_administrator(DialogId dialog_id, string *aut
   return true;
 }
 
+bool MessagesManager::get_dialog_silent_send_message(DialogId dialog_id) const {
+  auto *d = get_dialog(dialog_id);
+  CHECK(d != nullptr);
+  return d->notification_settings.silent_send_message;
+}
+
 int64 MessagesManager::generate_new_random_id() {
   int64 random_id;
   do {
@@ -26529,9 +26535,7 @@ void MessagesManager::on_yet_unsent_media_queue_updated(DialogId dialog_id) {
 Result<MessageId> MessagesManager::send_bot_start_message(UserId bot_user_id, DialogId dialog_id,
                                                           const string &parameter) {
   LOG(INFO) << "Begin to send bot start message to " << dialog_id;
-  if (td_->auth_manager_->is_bot()) {
-    return Status::Error(400, "Bot can't send start message to another bot");
-  }
+  CHECK(!td_->auth_manager_->is_bot());
 
   TRY_RESULT(bot_data, td_->contacts_manager_->get_bot_data(bot_user_id));
 
diff --git a/td/telegram/MessagesManager.h b/td/telegram/MessagesManager.h
index 4cf84643a..9478a6936 100644
--- a/td/telegram/MessagesManager.h
+++ b/td/telegram/MessagesManager.h
@@ -421,6 +421,8 @@ class MessagesManager final : public Actor {
   void set_dialog_default_send_message_as_dialog_id(DialogId dialog_id, DialogId message_sender_dialog_id,
                                                     Promise<Unit> &&promise);
 
+  bool get_dialog_silent_send_message(DialogId dialog_id) const;
+
   Result<td_api::object_ptr<td_api::message>> send_message(
       DialogId dialog_id, MessageId top_thread_message_id, MessageId reply_to_message_id,
       tl_object_ptr<td_api::messageSendOptions> &&options, tl_object_ptr<td_api::ReplyMarkup> &&reply_markup,
diff --git a/td/telegram/Td.cpp b/td/telegram/Td.cpp
index 66aa79a79..f20a59893 100644
--- a/td/telegram/Td.cpp
+++ b/td/telegram/Td.cpp
@@ -7360,6 +7360,15 @@ void Td::on_request(uint64 id, td_api::sendWebViewData &request) {
                                               std::move(request.data_), std::move(promise));
 }
 
+void Td::on_request(uint64 id, td_api::openWebView &request) {
+  CHECK_IS_USER();
+  CLEAN_INPUT_STRING(request.url_);
+  CREATE_REQUEST_PROMISE();
+  attach_menu_manager_->request_web_view(DialogId(request.chat_id_), UserId(request.bot_user_id_),
+                                         MessageId(request.reply_to_message_id_), std::move(request.url_),
+                                         request.from_bot_menu_, std::move(request.theme_), std::move(promise));
+}
+
 void Td::on_request(uint64 id, td_api::answerWebViewQuery &request) {
   CHECK_IS_BOT();
   CLEAN_INPUT_STRING(request.web_view_query_id_);
diff --git a/td/telegram/Td.h b/td/telegram/Td.h
index 9e8b796a5..96d94d77f 100644
--- a/td/telegram/Td.h
+++ b/td/telegram/Td.h
@@ -1159,6 +1159,8 @@ class Td final : public Actor {
 
   void on_request(uint64 id, td_api::sendWebViewData &request);
 
+  void on_request(uint64 id, td_api::openWebView &request);
+
   void on_request(uint64 id, td_api::answerWebViewQuery &request);
 
   void on_request(uint64 id, td_api::getCallbackQueryAnswer &request);
diff --git a/td/telegram/cli.cpp b/td/telegram/cli.cpp
index 79637dbf5..3891fe8e9 100644
--- a/td/telegram/cli.cpp
+++ b/td/telegram/cli.cpp
@@ -3439,6 +3439,15 @@ class CliClient final : public Actor {
       string data;
       get_args(args, user_id, button_text, data);
       send_request(td_api::make_object<td_api::sendWebViewData>(user_id, button_text, data));
+    } else if (op == "owv") {
+      ChatId chat_id;
+      UserId bot_user_id;
+      string url;
+      bool from_bot_menu;
+      MessageId reply_to_message_id;
+      get_args(args, chat_id, bot_user_id, url, from_bot_menu, reply_to_message_id);
+      send_request(td_api::make_object<td_api::openWebView>(chat_id, bot_user_id, url, from_bot_menu,
+                                                            get_theme_parameters(), reply_to_message_id));
     } else if (op == "sca") {
       ChatId chat_id;
       string message_thread_id;