diff --git a/src/main/java/com/uid2/operator/Main.java b/src/main/java/com/uid2/operator/Main.java
index 6b88d715b..51c7bef6c 100644
--- a/src/main/java/com/uid2/operator/Main.java
+++ b/src/main/java/com/uid2/operator/Main.java
@@ -265,6 +265,7 @@ private ICloudStorage wrapCloudStorageForOptOut(ICloudStorage cloudStorage) {
     }
 
     private void run() throws Exception {
+        this.createServiceInstancesMetric();
         Supplier<Verticle> operatorVerticleSupplier = () -> {
             UIDOperatorVerticle verticle = new UIDOperatorVerticle(config, this.clientSideTokenGenerate, siteProvider, clientKeyProvider, clientSideKeypairProvider, getKeyManager(), saltProvider, optOutStore, Clock.systemUTC(), _statsCollectorQueue, new SecureLinkValidatorService(this.serviceLinkProvider, this.serviceProvider), this.shutdownHandler::handleSaltRetrievalResponse);
             return verticle;
@@ -467,6 +468,12 @@ public DistributionStatisticConfig configure(Meter.Id id, DistributionStatisticC
                 .register(globalRegistry);
     }
 
+    private void createServiceInstancesMetric() {
+        Gauge.builder("uid2.operator.vertx_service_instances", () -> config.getInteger("service_instances"))
+            .description("gauge for number of request processing threads")
+                .register(Metrics.globalRegistry);
+    }
+
     private Map.Entry<UidCoreClient, UidOptOutClient> createUidClients(Vertx vertx, String attestationUrl, String clientApiToken, Handler<Pair<AttestationResponseCode, String>> responseWatcher) throws Exception {
         AttestationResponseHandler attestationResponseHandler = getAttestationTokenRetriever(vertx, attestationUrl, clientApiToken, responseWatcher);
         UidCoreClient coreClient = new UidCoreClient(clientApiToken, CloudUtils.defaultProxy, attestationResponseHandler);