diff --git a/src/src/main/java/com/my/graphiteDigesterBg/diframe/DiApiControllerBase.java b/src/src/main/java/com/my/graphiteDigesterBg/diframe/DiApiControllerBase.java
new file mode 100644
index 0000000..222ad43
--- /dev/null
+++ b/src/src/main/java/com/my/graphiteDigesterBg/diframe/DiApiControllerBase.java
@@ -0,0 +1,54 @@
+package com.my.graphiteDigesterBg.diframe;
+abstract public class DiApiControllerBase {
+    /**
+     * success response
+     * @return ApiResponse
+     */
+    protected DiApiResponse success() {
+        DiApiResponse response = new DiApiResponse();
+        response.success = true;
+        response.message = "OK";
+        response.code = "OK";
+        return response;
+    }
+
+    /**
+     * success response with data
+     * @param data - data to be returned
+     * @return ApiResponse
+     */
+    protected DiApiResponse success(Object data) {
+        DiApiResponse response = new DiApiResponse();
+        response.success = true;
+        response.message = "OK";
+        response.code = "OK";
+        response.data = data;
+        return response;
+    }
+
+    /**
+     * error response
+     * @param message - error message
+     * @return ApiResponse
+     */
+    protected DiApiResponse error(String message) {
+        DiApiResponse response = new DiApiResponse();
+        response.success = false;
+        response.message = message;
+        return response;
+    }
+
+    /**
+     * error response with code
+     * @param message - error message
+     * @param code - error code
+     * @return ApiResponse
+     */
+    protected DiApiResponse error(String message, String code ) {
+        DiApiResponse response = new DiApiResponse();
+        response.success = false;
+        response.message = message;
+        response.code = code;
+        return response;
+    }
+}
diff --git a/src/src/main/java/com/my/graphiteDigesterBg/diframe/DiApiResponse.java b/src/src/main/java/com/my/graphiteDigesterBg/diframe/DiApiResponse.java
new file mode 100644
index 0000000..491a036
--- /dev/null
+++ b/src/src/main/java/com/my/graphiteDigesterBg/diframe/DiApiResponse.java
@@ -0,0 +1,11 @@
+package com.my.graphiteDigesterBg.diframe;
+public class DiApiResponse {
+    // success or not
+    public boolean success;
+    // error code
+    public String code;
+    // message
+    public String message;
+    // data
+    public Object data;
+}
diff --git a/src/src/main/java/com/my/graphiteDigesterBg/diframe/DiDevice.java b/src/src/main/java/com/my/graphiteDigesterBg/diframe/DiDevice.java
index f8f8109..dbaabdf 100644
--- a/src/src/main/java/com/my/graphiteDigesterBg/diframe/DiDevice.java
+++ b/src/src/main/java/com/my/graphiteDigesterBg/diframe/DiDevice.java
@@ -9,15 +9,12 @@ public class DiDevice {
     private DiDeviceActuatorManager actuators;
     // task manager
     private DiTaskManager taskManager;
-    // task executor
-    private DiTaskExecutor taskExecutor;
 
     @PostConstruct
     public void init() {
         this.io = new DiDeviceIOManager(this);
         this.actuators = new DiDeviceActuatorManager(this);
-        this.taskManager = new DiTaskManager();
-        this.taskExecutor = new DiTaskExecutor(this);
+        this.taskManager = new DiTaskManager(this);
     }
 
     // get io manager
@@ -30,11 +27,6 @@ public class DiDevice {
         return this.actuators;
     }
 
-    // get task executor
-    public DiTaskExecutor getTaskExecutor() {
-        return this.taskExecutor;
-    }
-
     // get task manager
     public DiTaskManager getTaskManager() {
         return this.taskManager;
diff --git a/src/src/main/java/com/my/graphiteDigesterBg/diframe/DiTaskExecutor.java b/src/src/main/java/com/my/graphiteDigesterBg/diframe/DiTaskExecutor.java
index 30bf956..db125ad 100644
--- a/src/src/main/java/com/my/graphiteDigesterBg/diframe/DiTaskExecutor.java
+++ b/src/src/main/java/com/my/graphiteDigesterBg/diframe/DiTaskExecutor.java
@@ -1,10 +1,55 @@
 package com.my.graphiteDigesterBg.diframe;
-public class DiTaskExecutor {
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+public class DiTaskExecutor implements Runnable {
+    // logger
+    public static final Logger LOG = LoggerFactory.getLogger(DiTaskExecutor.class);
     // device instance
-    private DiDevice device;
+    private final DiDevice device;
+    // stop request lock
+    private final Object stopRequestLock;
+    // stop request flag
+    private boolean isStopRequested;
 
     // constructor
     public DiTaskExecutor(DiDevice device) {
         this.device = device;
+        this.stopRequestLock = new Object();
+        this.isStopRequested = false;
     }
+
+    @Override
+    public void run() {
+        LOG.info("Task executor started");
+        while ( !this.isStopRequested ) {
+            LOG.info("Task executor running");
+            try {
+                Thread.sleep(1000);
+            } catch (InterruptedException e) {
+                LOG.error("Task executor interrupted");
+                break;
+            }
+        }
+        LOG.info("Task executor stopped");
+        synchronized (this.stopRequestLock) {
+            this.stopRequestLock.notifyAll();
+        }
+    }
+
+    // stop executor
+    public void stop() {
+        LOG.info("Task executor stop requested");
+        synchronized (this.stopRequestLock) {
+            this.isStopRequested = true;
+            try {
+                this.stopRequestLock.wait();
+            } catch (InterruptedException e) {
+                throw new RuntimeException(e);
+            }
+        }
+        LOG.info("Task executor stop completed");
+    }
+
+    public void pause() {}
+    public void resume() {}
 }
diff --git a/src/src/main/java/com/my/graphiteDigesterBg/diframe/DiTaskManager.java b/src/src/main/java/com/my/graphiteDigesterBg/diframe/DiTaskManager.java
index 38d5c16..3d0c0af 100644
--- a/src/src/main/java/com/my/graphiteDigesterBg/diframe/DiTaskManager.java
+++ b/src/src/main/java/com/my/graphiteDigesterBg/diframe/DiTaskManager.java
@@ -10,12 +10,34 @@ import java.util.Map;
 public class DiTaskManager {
     // logger
     public static final Logger LOG = LoggerFactory.getLogger(DiTaskManager.class);
+    // device
+    private DiDevice device;
     // task classes
     private Map<String, Class<?>> taskClasses;
+    // task executor
+    private DiTaskExecutor executor;
+    // executor thread
+    private Thread executorThread;
 
     // constructor
-    public DiTaskManager() {
+    public DiTaskManager(DiDevice device) {
+        this.device = device;
         this.taskClasses = new HashMap<>();
+        this.executor = null;
+        this.executorThread = null;
+    }
+
+    // start executor
+    public void executorStart() {
+        this.executor = new DiTaskExecutor(this.device);
+        this.executorThread = new Thread(this.executor);
+        this.executorThread.setName("task-executor");
+        this.executorThread.start();
+    }
+
+    // get executor
+    public DiTaskExecutor getExecutor() {
+        return this.executor;
     }
 
     // get scan task classes
diff --git a/src/src/main/java/com/my/graphiteDigesterBg/diframe/api/ApiDevice.java b/src/src/main/java/com/my/graphiteDigesterBg/diframe/api/ApiDevice.java
index d9461b2..19364f9 100644
--- a/src/src/main/java/com/my/graphiteDigesterBg/diframe/api/ApiDevice.java
+++ b/src/src/main/java/com/my/graphiteDigesterBg/diframe/api/ApiDevice.java
@@ -1,8 +1,36 @@
 package com.my.graphiteDigesterBg.diframe.api;
-public class ApiDevice {
-    public void init() {}
-    public void start() {}
-    public void stop() {}
+import com.my.graphiteDigesterBg.diframe.DiApiControllerBase;
+import com.my.graphiteDigesterBg.diframe.DiApiResponse;
+import com.my.graphiteDigesterBg.diframe.DiDevice;
+import jakarta.annotation.Resource;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
+@Controller
+public class ApiDevice extends DiApiControllerBase {
+    @Resource
+    private DiDevice device;
+
+    /**
+     * start device to execute tasks
+     */
+    @ResponseBody
+    @PostMapping("/api/device/start")
+    public DiApiResponse start() {
+        this.device.getTaskManager().executorStart();
+        return this.success();
+    }
+
+    /**
+     * stop device to execute tasks
+     */
+    @ResponseBody
+    @PostMapping("/api/device/stop")
+    public DiApiResponse stop() {
+        this.device.getTaskManager().getExecutor().stop();
+        return this.success();
+    }
+
     public void pause() {}
     public void resume() {}
 }