diff --git a/cmd/bursa/main.go b/cmd/bursa/main.go
index 0346e63..0a1f356 100644
--- a/cmd/bursa/main.go
+++ b/cmd/bursa/main.go
@@ -30,6 +30,12 @@ func main() {
 			flag.CommandLine.Output(),
 			"Usage: bursa [-h] [subcommand] [args]\n\nSubcommands:\n\n",
 		)
+		fmt.Fprintf(
+			flag.CommandLine.Output(),
+			" - %-18s  %s\n",
+			"api",
+			"run an API server",
+		)
 		fmt.Fprintf(
 			flag.CommandLine.Output(),
 			" - %-18s  %s\n",