diff --git a/.config/openmetrics.config.php b/.config/openmetrics.config.php
new file mode 100644
index 000000000..919ad3dcb
--- /dev/null
+++ b/.config/openmetrics.config.php
@@ -0,0 +1,6 @@
+<?php
+
+$openmetricsAllowedClients = getenv('OPENMETRICS_ALLOWED_CLIENTS');
+if ($openmetricsAllowedClients) {
+  $CONFIG['openmetrics_allowed_clients'] = array_filter(array_map('trim', explode(',', $openmetricsAllowedClients)));
+}