diff --git a/pages/api.go b/pages/api.go
index 2e2a1f0..4e1fcd4 100644
--- a/pages/api.go
+++ b/pages/api.go
@@ -22,6 +22,9 @@ func HandleSourceLanguages(c *fiber.Ctx) error {
 	} else if engine == "watson" {
 		data = utils.LangListWatson("sl")
 	}
+	} else if engine == "yandex" {
+		data = utils.LangListYandex("sl")
+	}
 	return c.JSON(data)
 }
 func HandleTargetLanguages(c *fiber.Ctx) error {
@@ -41,6 +44,9 @@ func HandleTargetLanguages(c *fiber.Ctx) error {
 	} else if engine == "watson" {
 		data = utils.LangListWatson("tl")
 	}
+	} else if engine == "yandex" {
+		data = utils.LangListYandex("tl")
+	}
 	return c.JSON(data)
 }
 func HandleTTS(c *fiber.Ctx) error {