diff --git a/ent/history.go b/ent/history.go
new file mode 100644
index 0000000..0e4c786
--- /dev/null
+++ b/ent/history.go
@@ -0,0 +1,11 @@
+package ent
+
+import (
+	"sourcecode.social/reiver/go-opt"
+)
+
+type History struct {
+	Day      opt.Optional[string] `json:"day"`
+	Accounts opt.Optional[string] `json:"accounts"`
+	Uses     opt.Optional[string] `json:"uses"`
+}