diff --git a/benchmark/CMakeLists.txt b/benchmark/CMakeLists.txt
index ef2963f7..5167bb07 100644
--- a/benchmark/CMakeLists.txt
+++ b/benchmark/CMakeLists.txt
@@ -40,6 +40,9 @@ target_link_libraries(bench_tddb PRIVATE tdcore tddb tdutils)
 add_executable(bench_misc bench_misc.cpp)
 target_link_libraries(bench_misc PRIVATE tdcore tdutils)
 
+add_executable(check_proxy check_proxy.cpp)
+target_link_libraries(check_proxy PRIVATE tdclient tdcore)
+
 add_executable(check_tls check_tls.cpp)
 target_link_libraries(check_tls PRIVATE tdutils)
 
diff --git a/benchmark/check_proxy.cpp b/benchmark/check_proxy.cpp
new file mode 100644
index 00000000..5f54e850
--- /dev/null
+++ b/benchmark/check_proxy.cpp
@@ -0,0 +1,91 @@
+//
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2019
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+#include "td/telegram/Client.h"
+
+#include "td/utils/common.h"
+#include "td/utils/logging.h"
+#include "td/utils/misc.h"
+
+#include <cstdlib>
+
+static void usage() {
+  td::TsCerr() << "Tests specified MTProto-proxy; exits with code 0 on success.\n";
+  td::TsCerr() << "Usage:\n";
+  td::TsCerr() << "check_proxy [-v<N>] [-h] server:port:secret\n";
+  std::exit(2);
+}
+
+int main(int argc, char **argv) {
+  int new_verbosity_level = VERBOSITY_NAME(FATAL);
+  td::string server;
+  td::int32 port = 0;
+  td::string secret;
+
+  for (int i = 1; i < argc; i++) {
+    td::string arg(argv[i]);
+    if (arg.substr(0, 2) == "-v") {
+      if (arg.size() == 2 && i + 1 < argc) {
+        arg = argv[++i];
+      } else {
+        arg = arg.substr(2);
+      }
+      int new_verbosity = 1;
+      while (arg[0] == 'v') {
+        new_verbosity++;
+        arg = arg.substr(1);
+      }
+      if (!arg.empty()) {
+        new_verbosity += td::to_integer<int>(arg) - (new_verbosity == 1);
+      }
+      new_verbosity_level = VERBOSITY_NAME(FATAL) + new_verbosity;
+    } else if (arg == "-h" || arg == "--help") {
+      usage();
+    } else {
+      auto secret_pos = arg.rfind(':');
+      if (secret_pos == td::string::npos) {
+        td::TsCerr() << (PSLICE() << "Error: failed to find proxy port and secret in \"" << arg << "\"\n");
+        usage();
+      }
+      secret = arg.substr(secret_pos + 1);
+      auto port_pos = arg.substr(0, secret_pos).rfind(':');
+      if (port_pos == td::string::npos) {
+        td::TsCerr() << (PSLICE() << "Error: failed to find proxy secret in \"" << arg << "\"\n");
+        usage();
+      }
+      auto r_port = td::to_integer_safe<td::int32>(arg.substr(port_pos + 1, secret_pos - port_pos - 1));
+      if (r_port.is_error()) {
+        td::TsCerr() << (PSLICE() << "Error: failed to parse proxy port in \"" << arg << "\"\n");
+        usage();
+      }
+      port = r_port.move_as_ok();
+      server = arg.substr(0, port_pos);
+    }
+  }
+
+  if (server.empty() || port <= 0 || port > 65536 || secret.empty()) {
+    td::TsCerr() << "Error: proxy address to check is not specified\n";
+    usage();
+  }
+
+  SET_VERBOSITY_LEVEL(new_verbosity_level);
+
+  td::Client client;
+  client.send({1, td::td_api::make_object<td::td_api::testProxy>(
+                      server, port, td::td_api::make_object<td::td_api::proxyTypeMtproto>(secret))});
+  while (true) {
+    auto response = client.receive(100.0);
+    if (response.id == 1) {
+      if (response.object->get_id() == td::td_api::error::ID) {
+        LOG(ERROR) << to_string(response.object);
+        return 1;
+      } else {
+        LOG(ERROR) << "Success!";
+        return 0;
+      }
+    }
+  }
+}