diff --git a/lib/customer_service_web/error_json.ex b/lib/customer_service_web/error_json.ex
new file mode 100644
index 0000000..999e032
--- /dev/null
+++ b/lib/customer_service_web/error_json.ex
@@ -0,0 +1,33 @@
+defmodule CustomerServiceWeb.ErrorJSON do
+  def render("404.json", _assigns) do
+    %{errors: %{detail: "Not found"}}
+  end
+
+  def render("400.json", _assigns) do
+    %{errors: %{detail: "Bad request"}}
+  end
+
+  def render("401.json", _assigns) do
+    %{errors: %{detail: "Unauthorized"}}
+  end
+
+  def render("403.json", _assigns) do
+    %{errors: %{detail: "Forbidden"}}
+  end
+
+  def render("422.json", %{message: message}) do
+    %{errors: %{detail: message}}
+  end
+
+  def render("422.json", _assigns) do
+    %{errors: %{detail: "Unprocessable entity"}}
+  end
+
+  def render("500.json", _assigns) do
+    %{errors: %{detail: "Internal server error"}}
+  end
+
+  def render(_template, _assigns) do
+    %{errors: %{detail: "Something went wrong"}}
+  end
+end