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diff --git a/compiler/circle-mpqsolver/src/core/SolverHooks.h b/compiler/circle-mpqsolver/src/core/SolverHooks.h
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+++ b/compiler/circle-mpqsolver/src/core/SolverHooks.h
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+/*
+ * Copyright (c) 2023 Samsung Electronics Co., Ltd. All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __MPQSOLVER_SOLVER_HOOKS_H__
+#define __MPQSOLVER_SOLVER_HOOKS_H__
+
+#include <luci/IR/Module.h>
+
+#include <core/Quantizer.h>
+
+#include <string>
+
+namespace mpqsolver
+{
+namespace core
+{
+
+class SolverHooks
+{
+public:
+  /**
+   * @brief called on the start of iterative search
+   * @param model_path path of original float model to quantize
+   * @param q8error error of Q8 quantization
+   * @param q16error error of Q16 quantization
+   */
+  virtual void on_begin_solver(const std::string &model_path, float q8error, float q16error) = 0;
+
+  /**
+   * @brief called on the start of current iteration
+   */
+  virtual void on_begin_iteration() = 0;
+
+  /**
+   * @brief called at the end of current iteration
+   * @param layers model nodes with specific quantization parameters
+   * @param def_dtype default quantization dtype
+   * @param error error of quantization for current iteration
+   */
+  virtual void on_end_iteration(const LayerParams &layers, const std::string &def_dtype,
+                                float error) const = 0;
+
+  /**
+   * @brief called at the end of iterative search
+   * @param layers model nodes with specific quantization parameters
+   * @param def_dtype default quantization dtype
+   * @param qerror final error of quantization
+   */
+  virtual void on_end_solver(const LayerParams &layers, const std::string &def_dtype,
+                             float qerror) = 0;
+};
+
+} // namespace core
+} // namespace mpqsolver
+
+#endif //__MPQSOLVER_SOLVER_HOOKS_H__