diff --git a/api/config.go b/api/config.go
index 0b1671e15..d0308eb11 100644
--- a/api/config.go
+++ b/api/config.go
@@ -19,10 +19,28 @@ type WebContact struct {
 
 // FeatureFlags is struct to manage feature flags.
 type FeatureFlags struct {
-	IsPlottingDefaultOn              bool `json:"isPlottingDefaultOn" example:"false"`
-	IsPlottingAvailable              bool `json:"isPlottingAvailable" example:"true"`
-	IsSubscriptionToAllTagsAvailable bool `json:"isSubscriptionToAllTagsAvailable" example:"false"`
-	IsReadonlyEnabled                bool `json:"isReadonlyEnabled" example:"false"`
+	IsPlottingDefaultOn              bool            `json:"isPlottingDefaultOn" example:"false"`
+	IsPlottingAvailable              bool            `json:"isPlottingAvailable" example:"true"`
+	IsSubscriptionToAllTagsAvailable bool            `json:"isSubscriptionToAllTagsAvailable" example:"false"`
+	IsReadonlyEnabled                bool            `json:"isReadonlyEnabled" example:"false"`
+	CelebrationMode                  CelebrationMode `json:"celebrationMode" example:"new_year"`
+}
+
+// CelebrationMode is type for celebrate Moira.
+type CelebrationMode string
+
+const newYear = "new_year"
+
+// AvailableCelebrationMode map with available celebration mode.
+var availableCelebrationMode = map[string]struct{}{
+	newYear: {},
+}
+
+// IsAvailableCelebrationMode return is mode available or not.
+func IsAvailableCelebrationMode(mode string) bool {
+	_, ok := availableCelebrationMode[mode]
+
+	return ok
 }
 
 // Sentry - config for sentry settings.
@@ -58,7 +76,7 @@ type MetricSourceCluster struct {
 	ClusterName   string              `json:"cluster_name" example:"Graphite Remote Prod"`
 }
 
-func (WebConfig) Render(w http.ResponseWriter, r *http.Request) error {
+func (WebConfig) Render(http.ResponseWriter, *http.Request) error {
 	return nil
 }
 
diff --git a/cmd/api/config.go b/cmd/api/config.go
index 41b998b37..0896ed24e 100644
--- a/cmd/api/config.go
+++ b/cmd/api/config.go
@@ -136,10 +136,11 @@ type webContact struct {
 }
 
 type featureFlags struct {
-	IsPlottingDefaultOn              bool `yaml:"is_plotting_default_on"`
-	IsPlottingAvailable              bool `yaml:"is_plotting_available"`
-	IsSubscriptionToAllTagsAvailable bool `yaml:"is_subscription_to_all_tags_available"`
-	IsReadonlyEnabled                bool `yaml:"is_readonly_enabled"`
+	IsPlottingDefaultOn              bool   `yaml:"is_plotting_default_on"`
+	IsPlottingAvailable              bool   `yaml:"is_plotting_available"`
+	IsSubscriptionToAllTagsAvailable bool   `yaml:"is_subscription_to_all_tags_available"`
+	IsReadonlyEnabled                bool   `yaml:"is_readonly_enabled"`
+	CelebrationMode                  string `yaml:"celebration_mode"`
 }
 
 func (config *apiConfig) getSettings(
@@ -247,9 +248,18 @@ func (config *webConfig) getFeatureFlags() api.FeatureFlags {
 		IsPlottingAvailable:              config.FeatureFlags.IsPlottingAvailable,
 		IsSubscriptionToAllTagsAvailable: config.FeatureFlags.IsSubscriptionToAllTagsAvailable,
 		IsReadonlyEnabled:                config.FeatureFlags.IsReadonlyEnabled,
+		CelebrationMode:                  getCelebrationMode(config.FeatureFlags.CelebrationMode),
 	}
 }
 
+func getCelebrationMode(mode string) api.CelebrationMode {
+	if api.IsAvailableCelebrationMode(mode) {
+		return api.CelebrationMode(mode)
+	}
+
+	return ""
+}
+
 func getDefault() config {
 	return config{
 		Redis: cmd.RedisConfig{
diff --git a/cmd/api/config_test.go b/cmd/api/config_test.go
index 2892ab5db..286a316eb 100644
--- a/cmd/api/config_test.go
+++ b/cmd/api/config_test.go
@@ -258,6 +258,18 @@ func Test_webConfig_getSettings(t *testing.T) {
 	})
 }
 
+func Test_webConfig_getCelebrationMode(t *testing.T) {
+	Convey("Available celebration mode, should return mode", t, func() {
+		celebrationMode := getCelebrationMode("new_year")
+		So(celebrationMode, ShouldEqual, api.CelebrationMode("new_year"))
+	})
+
+	Convey("Not available celebration mode, should return empty string", t, func() {
+		celebrationMode := getCelebrationMode("blablabla")
+		So(celebrationMode, ShouldEqual, "")
+	})
+}
+
 func Test_webConfig_validate(t *testing.T) {
 	Convey("With empty web config", t, func() {
 		config := webConfig{}