diff --git a/internal/app/service/device/proto/device.proto b/internal/app/service/device/proto/device.proto
new file mode 100644
index 0000000..aacda4c
--- /dev/null
+++ b/internal/app/service/device/proto/device.proto
@@ -0,0 +1,21 @@
+syntax = "proto3";
+
+package device;
+
+import "google/protobuf/any.proto";
+
+option go_package = "internal/app/service/device/proto";
+
+service Device {
+  rpc Ping(PingRequest) returns (PingResponse);
+}
+
+message PingRequest {
+  int32 message_id = 1;
+  string method = 2;
+}
+
+message PingResponse {
+  int32 message_id = 1;
+  string message = 2;
+}