diff --git a/pkg/service/ecloud/request.go b/pkg/service/ecloud/request.go
index f0bb987..5faf768 100644
--- a/pkg/service/ecloud/request.go
+++ b/pkg/service/ecloud/request.go
@@ -630,3 +630,9 @@ type PatchNATOverloadRuleRequest struct {
 	Subnet string                `json:"subnet,omitempty"`
 	Action NATOverloadRuleAction `json:"action,omitempty"`
 }
+
+type ExecuteInstanceScriptRequest struct {
+	Script   string `json:"script"`
+	Username string `json:"username"`
+	Password string `json:"password"`
+}
diff --git a/pkg/service/ecloud/service.go b/pkg/service/ecloud/service.go
index 84b1f3c..38ec607 100644
--- a/pkg/service/ecloud/service.go
+++ b/pkg/service/ecloud/service.go
@@ -180,6 +180,7 @@ type ECloudService interface {
 	CreateInstanceImage(instanceID string, req CreateInstanceImageRequest) (TaskReference, error)
 	EncryptInstance(instanceID string) (string, error)
 	DecryptInstance(instanceID string) (string, error)
+	ExecuteInstanceScript(instanceID string, req ExecuteInstanceScriptRequest) (string, error)
 
 	// Floating IP
 	GetFloatingIPs(parameters connection.APIRequestParameters) ([]FloatingIP, error)
diff --git a/pkg/service/ecloud/service_instance.go b/pkg/service/ecloud/service_instance.go
index 278b1ee..779f6a3 100644
--- a/pkg/service/ecloud/service_instance.go
+++ b/pkg/service/ecloud/service_instance.go
@@ -667,3 +667,17 @@ func (s *Service) decryptInstanceResponseBody(instanceID string) (*connection.AP
 
 	return connection.Put[TaskReference](s.connection, fmt.Sprintf("/ecloud/v2/instances/%s/decrypt", instanceID), nil, connection.NotFoundResponseHandler(&InstanceNotFoundError{ID: instanceID}))
 }
+
+func (s *Service) ExecuteInstanceScript(instanceID string, req ExecuteInstanceScriptRequest) (string, error) {
+	body, err := s.executeInstanceScriptResponseBody(instanceID, req)
+
+	return body.Data.TaskID, err
+}
+
+func (s *Service) executeInstanceScriptResponseBody(instanceID string, req ExecuteInstanceScriptRequest) (*connection.APIResponseBodyData[TaskReference], error) {
+	if instanceID == "" {
+		return &connection.APIResponseBodyData[TaskReference]{}, fmt.Errorf("invalid instance id")
+	}
+
+	return connection.Post[TaskReference](s.connection, fmt.Sprintf("/ecloud/v2/instances/%s/user-script", instanceID), &req, connection.NotFoundResponseHandler(&InstanceNotFoundError{ID: instanceID}))
+}
diff --git a/pkg/service/ecloud/service_instance_test.go b/pkg/service/ecloud/service_instance_test.go
index 946adcb..e4ed9ac 100644
--- a/pkg/service/ecloud/service_instance_test.go
+++ b/pkg/service/ecloud/service_instance_test.go
@@ -3,6 +3,7 @@ package ecloud
 import (
 	"bytes"
 	"errors"
+	"io"
 	"io/ioutil"
 	"net/http"
 	"testing"
@@ -1890,3 +1891,80 @@ func TestDecryptInstance(t *testing.T) {
 		assert.Equal(t, "invalid instance id", err.Error())
 	})
 }
+
+func TestExecuteInstanceScript(t *testing.T) {
+	t.Run("Valid_NoError", func(t *testing.T) {
+		mockCtrl := gomock.NewController(t)
+		defer mockCtrl.Finish()
+
+		c := mocks.NewMockConnection(mockCtrl)
+
+		s := Service{
+			connection: c,
+		}
+
+		c.EXPECT().Post("/ecloud/v2/instances/i-abcdef12/user-script", gomock.Any()).Return(&connection.APIResponse{
+			Response: &http.Response{
+				Body:       io.NopCloser(bytes.NewReader([]byte("{\"data\":{\"task_id\":\"task-abcdef12\"},\"meta\":{\"location\":\"\"}}"))),
+				StatusCode: 202,
+			},
+		}, nil)
+
+		executeRequest := ExecuteInstanceScriptRequest{
+			Script:   "test script 1",
+			Username: "test_user",
+			Password: "test_password",
+		}
+
+		taskID, err := s.ExecuteInstanceScript("i-abcdef12", executeRequest)
+
+		assert.Nil(t, err)
+		assert.Equal(t, "task-abcdef12", taskID)
+	})
+
+	t.Run("ConnectionError_ReturnsError", func(t *testing.T) {
+		mockCtrl := gomock.NewController(t)
+		defer mockCtrl.Finish()
+
+		c := mocks.NewMockConnection(mockCtrl)
+
+		s := Service{
+			connection: c,
+		}
+
+		c.EXPECT().Post("/ecloud/v2/instances/i-abcdef12/user-script", gomock.Any()).Return(&connection.APIResponse{}, errors.New("test error 1")).Times(1)
+
+		executeRequest := ExecuteInstanceScriptRequest{
+			Script:   "test script 1",
+			Username: "test_user",
+			Password: "test_password",
+		}
+
+		_, err := s.ExecuteInstanceScript("i-abcdef12", executeRequest)
+
+		assert.NotNil(t, err)
+		assert.Equal(t, "test error 1", err.Error())
+	})
+
+	t.Run("InvalidInstanceID_ReturnsError", func(t *testing.T) {
+		mockCtrl := gomock.NewController(t)
+		defer mockCtrl.Finish()
+
+		c := mocks.NewMockConnection(mockCtrl)
+
+		s := Service{
+			connection: c,
+		}
+
+		executeRequest := ExecuteInstanceScriptRequest{
+			Script:   "test script 1",
+			Username: "test_user",
+			Password: "test_password",
+		}
+
+		_, err := s.ExecuteInstanceScript("", executeRequest)
+
+		assert.NotNil(t, err)
+		assert.Equal(t, "invalid instance id", err.Error())
+	})
+}