diff --git a/src/net/irext/webapi/WebAPIs.java b/src/net/irext/webapi/WebAPIs.java
index c3f79c9..0d7790d 100644
--- a/src/net/irext/webapi/WebAPIs.java
+++ b/src/net/irext/webapi/WebAPIs.java
@@ -41,7 +41,8 @@ public class WebAPIs {
     private static final String SERVICE_LIST_CITIES = "/indexing/list_cities";
     private static final String SERVICE_LIST_OPERATORS = "/indexing/list_operators";
     private static final String SERVICE_LIST_INDEXES = "/indexing/list_indexes";
-    private static final String SERVICE_DOWNLOAD_BIN = "/indexing/download_bin";
+    private static final String SERVICE_DOWNLOAD_BIN = "/operation/download_bin";
+    private static final String SERVICE_ONLINE_DECODE = "/operation/decode";
 
     private int adminId;
     private String token;
@@ -274,4 +275,30 @@ public class WebAPIs {
         }
         return null;
     }
+
+    @SuppressWarnings("unused")
+    public int[] decodeIR(int indexId) {
+        String decodeURL = URL_PREFIX + SERVICE_ONLINE_DECODE;
+        DecodeRequest decodeRequest = new DecodeRequest();
+        decodeRequest.setAdminId(adminId);
+        decodeRequest.setToken(token);
+        decodeRequest.setIndexId(indexId);
+
+        String bodyJson = decodeRequest.toJson();
+
+        if (null != bodyJson) {
+            try {
+                String response = postToServer(decodeURL, bodyJson);
+
+                DecodeResponse decodeResponse = new Gson().fromJson(response, DecodeResponse.class);
+
+                if (decodeResponse.getStatus().getCode() == Constants.ERROR_CODE_SUCCESS) {
+                    return decodeResponse.getEntity();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+        return null;
+    }
 }
diff --git a/src/net/irext/webapi/bean/ACStatus.java b/src/net/irext/webapi/bean/ACStatus.java
new file mode 100644
index 0000000..ca4c51d
--- /dev/null
+++ b/src/net/irext/webapi/bean/ACStatus.java
@@ -0,0 +1,104 @@
+package net.irext.webapi.bean;
+
+/**
+ * Filename:       ACStatus.java
+ * Revised:        Date: 2017-03-28
+ * Revision:       Revision: 1.0
+ * <p>
+ * Description:    Status descriptor for air-conditioner
+ * <p>
+ * Revision log:
+ * 2017-03-28: created by strawmanbobi
+ */
+public class ACStatus {
+
+    private static final String TAG = ACStatus.class.getSimpleName();
+
+    private int acPower;
+    private int acTemp;
+    private int acMode;
+    private int acWindDir;
+    private int acWindSpeed;
+    private int acDisplay;
+    private int acSleep;
+    private int acTimer;
+
+    public ACStatus() {
+    }
+
+    public ACStatus(int acPower, int acMode, int acTemp, int acWindSpeed, int acWindDir,
+                    int acDisplay, int acSleep, int acTimer) {
+        this.acPower = acPower;
+        this.acTemp = acTemp;
+        this.acMode = acMode;
+        this.acWindDir = acWindDir;
+        this.acWindSpeed = acWindSpeed;
+        this.acDisplay = acDisplay;
+        this.acSleep = acSleep;
+        this.acTimer = acTimer;
+    }
+
+    public int getAcPower() {
+        return acPower;
+    }
+
+    public void setAcPower(int acPower) {
+        this.acPower = acPower;
+    }
+
+    public int getAcTemp() {
+        return acTemp;
+    }
+
+    public void setAcTemp(int acTemp) {
+        this.acTemp = acTemp;
+    }
+
+    public int getAcMode() {
+        return acMode;
+    }
+
+    public void setAcMode(int acMode) {
+        this.acMode = acMode;
+    }
+
+    public int getAcWindDir() {
+        return acWindDir;
+    }
+
+    public void setAcWindDir(int acWindDir) {
+        this.acWindDir = acWindDir;
+    }
+
+    public int getAcWindSpeed() {
+        return acWindSpeed;
+    }
+
+    public void setAcWindSpeed(int acWindSpeed) {
+        this.acWindSpeed = acWindSpeed;
+    }
+
+    public int getAcDisplay() {
+        return acDisplay;
+    }
+
+    public void setAcDisplay(int acDisplay) {
+        this.acDisplay = acDisplay;
+    }
+
+    public int getAcSleep() {
+        return acSleep;
+    }
+
+    public void setAcSleep(int acSleep) {
+        this.acSleep = acSleep;
+    }
+
+    public int getAcTimer() {
+        return acTimer;
+    }
+
+    public void setAcTimer(int acTimer) {
+        this.acTimer = acTimer;
+    }
+}
diff --git a/src/net/irext/webapi/bean/TemperatureRange.java b/src/net/irext/webapi/bean/TemperatureRange.java
new file mode 100644
index 0000000..5e5106d
--- /dev/null
+++ b/src/net/irext/webapi/bean/TemperatureRange.java
@@ -0,0 +1,43 @@
+package net.irext.webapi.bean;
+
+/**
+ * Filename:       TemperatureRange.java
+ * Revised:        Date: 2017-03-28
+ * Revision:       Revision: 1.0
+ * <p>
+ * Description:    Temperature range for air-conditioner
+ * <p>
+ * Revision log:
+ * 2017-03-28: created by strawmanbobi
+ */
+public class TemperatureRange {
+
+    private static final String TAG = TemperatureRange.class.getSimpleName();
+
+    private int tempMin;
+    private int tempMax;
+
+    public TemperatureRange() {
+    }
+
+    public TemperatureRange(int tempMin, int tempMax) {
+        this.tempMin = tempMin;
+        this.tempMax = tempMax;
+    }
+
+    public int getTempMin() {
+        return tempMin;
+    }
+
+    public void setTempMin(int tempMin) {
+        this.tempMin = tempMin;
+    }
+
+    public int getTempMax() {
+        return tempMax;
+    }
+
+    public void setTempMax(int tempMax) {
+        this.tempMax = tempMax;
+    }
+}
diff --git a/src/net/irext/webapi/request/DecodeRequest.java b/src/net/irext/webapi/request/DecodeRequest.java
new file mode 100644
index 0000000..93b977e
--- /dev/null
+++ b/src/net/irext/webapi/request/DecodeRequest.java
@@ -0,0 +1,64 @@
+package net.irext.webapi.request;
+
+import net.irext.webapi.bean.ACStatus;
+
+/**
+ * Filename:       DecodeRequest.java
+ * Revised:        Date: 2017-05-16
+ * Revision:       Revision: 1.0
+ * <p>
+ * Description:    HTTP decode online
+ * <p>
+ * Revision log:
+ * 2017-05-16: created by strawmanbobi
+ */
+public class DecodeRequest extends BaseRequest {
+
+    private int indexId;
+    private ACStatus acStatus;
+    private int keyCode;
+    private int changeWindDir;
+
+    public DecodeRequest(int indexId, ACStatus acStatus, int keyCode, int changeWindDir) {
+        this.indexId = indexId;
+        this.acStatus = acStatus;
+        this.keyCode = keyCode;
+        this.changeWindDir = changeWindDir;
+    }
+
+    public DecodeRequest() {
+
+    }
+
+    public int getIndexId() {
+        return indexId;
+    }
+
+    public void setIndexId(int indexId) {
+        this.indexId = indexId;
+    }
+
+    public ACStatus getAcStatus() {
+        return acStatus;
+    }
+
+    public void setAcStatus(ACStatus acStatus) {
+        this.acStatus = acStatus;
+    }
+
+    public int getKeyCode() {
+        return keyCode;
+    }
+
+    public void setKeyCode(int keyCode) {
+        this.keyCode = keyCode;
+    }
+
+    public int getChangeWindDir() {
+        return changeWindDir;
+    }
+
+    public void setChangeWindDir(int changeWindDir) {
+        this.changeWindDir = changeWindDir;
+    }
+}
diff --git a/src/net/irext/webapi/response/DecodeResponse.java b/src/net/irext/webapi/response/DecodeResponse.java
new file mode 100644
index 0000000..c221f4e
--- /dev/null
+++ b/src/net/irext/webapi/response/DecodeResponse.java
@@ -0,0 +1,33 @@
+package net.irext.webapi.response;
+
+/**
+ * Filename:       DecodeResponse.java
+ * Revised:        Date: 2017-05-16
+ * Revision:       Revision: 1.0
+ * <p>
+ * Description:    Online decode response
+ * <p>
+ * Revision log:
+ * 2017-05-16: created by strawmanbobi
+ */
+public class DecodeResponse extends ServiceResponse {
+
+    private int[] entity;
+
+    public DecodeResponse(Status status, int[] entity) {
+        super(status);
+        this.entity = entity;
+    }
+
+    public DecodeResponse() {
+
+    }
+
+    public int[] getEntity() {
+        return entity;
+    }
+
+    public void setEntity(int[] entity) {
+        this.entity = entity;
+    }
+}