diff --git a/go-api/hook/hook.go b/go-api/hook/hook.go
index a5ea6ed..7de14f7 100644
--- a/go-api/hook/hook.go
+++ b/go-api/hook/hook.go
@@ -4,6 +4,7 @@ import "context"
 
 type Hook interface {
 	Init(params map[string]string) error
+	VerifyAPIKey(key string) (string, error)
 	Mock(ctx context.Context, req interface{}, fullMethod string) (bool, interface{}, error)
 	Before(ctx context.Context, req interface{}, fullMethod string) (context.Context, error)
 	After(ctx context.Context, result interface{}, err error, fullMethod string) error