diff --git a/src/main/java/ru/ulstu/controller/TimeSeriesController.java b/src/main/java/ru/ulstu/controller/TimeSeriesController.java
index eef1580..1248005 100644
--- a/src/main/java/ru/ulstu/controller/TimeSeriesController.java
+++ b/src/main/java/ru/ulstu/controller/TimeSeriesController.java
@@ -88,8 +88,7 @@ public class TimeSeriesController {
 
     @PostMapping("getGroupedTendencies")
     @Operation(description = "Получить список сгруппированных тенденций")
-    public ResponseEntity<TimeSeries> getGroupedTendencies(@RequestBody TimeSeries timeSeries) throws ModelingException, ExecutionException, InterruptedException, InvocationTargetException, NoSuchMethodException, InstantiationException, IllegalAccessException {
-        return new ResponseEntity<>(timeSeriesService.getGroupedTendencies(timeSeries), HttpStatus.OK);
+    public ResponseEntity<List<TimeSeries>> getGroupedTendencies(@RequestBody List<TimeSeries> timeSeriesList) {
+        return new ResponseEntity<>(timeSeriesService.getGroupedTendencies(timeSeriesList), HttpStatus.OK);
     }
-
 }
diff --git a/src/main/java/ru/ulstu/service/TimeSeriesService.java b/src/main/java/ru/ulstu/service/TimeSeriesService.java
index 10c7eea..e9bf4b0 100644
--- a/src/main/java/ru/ulstu/service/TimeSeriesService.java
+++ b/src/main/java/ru/ulstu/service/TimeSeriesService.java
@@ -10,6 +10,7 @@ import ru.ulstu.method.Method;
 import java.lang.reflect.InvocationTargetException;
 import java.util.List;
 import java.util.concurrent.ExecutionException;
+import java.util.stream.Collectors;
 
 
 @Service
@@ -43,8 +44,16 @@ public class TimeSeriesService {
         return methodParamBruteForce.getAvailableMethods();
     }
 
-    public TimeSeries getGroupedTendencies(TimeSeries timeSeries) throws ModelingException, ExecutionException, InterruptedException, InvocationTargetException, NoSuchMethodException, InstantiationException, IllegalAccessException {
-        timeSeries = smoothTimeSeries(timeSeries, "FTransform").getTimeSeries();
+    public List<TimeSeries> getGroupedTendencies(List<TimeSeries> timeSeriesList) {
+        return timeSeriesList.stream().map(this::getGroupedTendencies).collect(Collectors.toList());
+    }
+
+    public TimeSeries getGroupedTendencies(TimeSeries timeSeries) {
+        try {
+            timeSeries = smoothTimeSeries(timeSeries, "FTransform").getTimeSeries();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
         int i = 2;
         double prevDiff = timeSeries.getNumericValue(1) -
                 timeSeries.getNumericValue(0);