diff --git a/src/main/java/com/uid2/core/Main.java b/src/main/java/com/uid2/core/Main.java
index cce761b..0ecf138 100644
--- a/src/main/java/com/uid2/core/Main.java
+++ b/src/main/java/com/uid2/core/Main.java
@@ -49,6 +49,8 @@
 
 public class Main {
 
+    private static final int vertxServiceInstances = 1;
+
     public static void main(String[] args) {
         final String vertxConfigPath = System.getProperty(Const.Config.VERTX_CONFIG_PATH_PROP);
         if (vertxConfigPath != null) {
@@ -157,7 +159,7 @@ public static void main(String[] args) {
                 );
 
                 JwtService jwtService = new JwtService(config);
-
+                createServiceInstancesMetric();
                 coreVerticle = new CoreVerticle(cloudStorage, operatorKeyProvider, attestationService, attestationTokenService, enclaveIdProvider, operatorJWTTokenProvider, jwtService, cloudEncryptionKeyProvider);
             } catch (Exception e) {
                 System.out.println("failed to initialize core verticle: " + e.getMessage());
@@ -210,6 +212,12 @@ private static void setupMetrics(MicrometerMetricsOptions metricOptions) {
                 .register(Metrics.globalRegistry);
     }
 
+    private static void createServiceInstancesMetric() {
+        Gauge.builder("uid2.core.vertx_service_instances", () -> vertxServiceInstances)
+                .description("gauge for number of request processing threads")
+                .register(Metrics.globalRegistry);
+    }
+
     /*
     private static CommandLine parseArgs(String[] args) {
         final CLI cli = CLI.create("uid2-core")