diff --git a/doc/source/api-ref/index.rst b/doc/source/api-ref/index.rst
index eb9bfb417..0ae73762b 100644
--- a/doc/source/api-ref/index.rst
+++ b/doc/source/api-ref/index.rst
@@ -19,5 +19,6 @@ StarlingX project REST API references:
 * `Fault Management </api-ref/fault/index.html>`__
 * `High Availability </api-ref/ha/index.html>`__
 * `NFV </api-ref/nfv/index.html>`__
+* `Node Interface Metrics Exporter </api-ref/app-node-interface-metrics-exporter/index.html>`__
 * `PTP Status Notifications </api-ref/ptp-notification-armada-app/index.html>`__
 * `Software Updates </api-ref/update/index.html>`__