diff --git a/include/neuron/metrics.h b/include/neuron/metrics.h
index f790c83b..53284396 100644
--- a/include/neuron/metrics.h
+++ b/include/neuron/metrics.h
@@ -179,6 +179,8 @@ typedef struct {
     size_t              disk_used_gibibytes;
     size_t              disk_avail_gibibytes;
     bool                core_dumped;
+    uint64_t            license_max_tags;
+    uint64_t            license_used_tags;
     uint64_t            uptime_seconds;
     size_t              north_nodes;
     size_t              north_running_nodes;
diff --git a/plugins/restful/metric_handle.c b/plugins/restful/metric_handle.c
index f49667ff..3a0e0729 100644
--- a/plugins/restful/metric_handle.c
+++ b/plugins/restful/metric_handle.c
@@ -68,6 +68,12 @@
     "# HELP uptime_seconds Uptime in seconds\n"                                  \
     "# TYPE uptime_seconds counter\n"                                            \
     "uptime_seconds %" PRIu64 "\n"                                               \
+    "# HELP license_max_tags License tags limit\n"                               \
+    "# TYPE license_max_tags gauge\n"                                            \
+    "license_max_tags %" PRIu64 "\n"                                             \
+    "# HELP license_used_tags License total used tags\n"                         \
+    "# TYPE license_used_tags gauge\n"                                           \
+    "license_used_tags %" PRIu64 "\n"                                            \
     "# HELP north_nodes_total Number of north nodes\n"                           \
     "# TYPE north_nodes_total gauge\n"                                           \
     "north_nodes_total %zu\n"                                                    \
@@ -151,10 +157,11 @@ static inline void gen_global_metrics(const neu_metrics_t *metrics,
             metrics->mem_used_bytes, metrics->mem_cache_bytes,
             metrics->mem_used_bytes, metrics->disk_size_gibibytes,
             metrics->disk_used_gibibytes, metrics->disk_avail_gibibytes,
-            metrics->core_dumped, metrics->uptime_seconds, metrics->north_nodes,
-            metrics->north_running_nodes, metrics->north_disconnected_nodes,
-            metrics->south_nodes, metrics->south_running_nodes,
-            metrics->south_disconnected_nodes);
+            metrics->core_dumped, metrics->uptime_seconds,
+            metrics->license_max_tags, metrics->license_used_tags,
+            metrics->north_nodes, metrics->north_running_nodes,
+            metrics->north_disconnected_nodes, metrics->south_nodes,
+            metrics->south_running_nodes, metrics->south_disconnected_nodes);
 }
 
 static inline void
diff --git a/src/base/metrics.c b/src/base/metrics.c
index e3f4216b..36b949e8 100644
--- a/src/base/metrics.c
+++ b/src/base/metrics.c
@@ -33,9 +33,9 @@
 #include "utils/log.h"
 #include "utils/time.h"
 
-static pthread_rwlock_t g_metrics_mtx_ = PTHREAD_RWLOCK_INITIALIZER;
-static neu_metrics_t    g_metrics_;
-static uint64_t         g_start_ts_;
+pthread_rwlock_t g_metrics_mtx_ = PTHREAD_RWLOCK_INITIALIZER;
+neu_metrics_t    g_metrics_;
+static uint64_t  g_start_ts_;
 
 static void find_os_info()
 {