diff --git a/alerting/src/main/kotlin/org/opensearch/alerting/transport/TransportIndexMonitorAction.kt b/alerting/src/main/kotlin/org/opensearch/alerting/transport/TransportIndexMonitorAction.kt
index 06c6b0e26..a00cde540 100644
--- a/alerting/src/main/kotlin/org/opensearch/alerting/transport/TransportIndexMonitorAction.kt
+++ b/alerting/src/main/kotlin/org/opensearch/alerting/transport/TransportIndexMonitorAction.kt
@@ -45,6 +45,7 @@ import org.opensearch.alerting.util.isADMonitor
 import org.opensearch.client.Client
 import org.opensearch.cluster.service.ClusterService
 import org.opensearch.common.inject.Inject
+import org.opensearch.common.io.stream.NamedWriteableRegistry
 import org.opensearch.common.settings.Settings
 import org.opensearch.common.unit.TimeValue
 import org.opensearch.common.xcontent.LoggingDeprecationHandler
@@ -87,7 +88,8 @@ class TransportIndexMonitorAction @Inject constructor(
     val docLevelMonitorQueries: DocLevelMonitorQueries,
     val clusterService: ClusterService,
     val settings: Settings,
-    val xContentRegistry: NamedXContentRegistry
+    val xContentRegistry: NamedXContentRegistry,
+    val namedWriteableRegistry: NamedWriteableRegistry,
 ) : HandledTransportAction<ActionRequest, IndexMonitorResponse>(
     AlertingActions.INDEX_MONITOR_ACTION_NAME, transportService, actionFilters, ::IndexMonitorRequest
 ),
@@ -111,7 +113,10 @@ class TransportIndexMonitorAction @Inject constructor(
 
     override fun doExecute(task: Task, request: ActionRequest, actionListener: ActionListener<IndexMonitorResponse>) {
         val transformedRequest = request as? IndexMonitorRequest
-            ?: recreateObject(request) { IndexMonitorRequest(it) }
+            ?: recreateObject(request, namedWriteableRegistry) {
+                IndexMonitorRequest(it)
+            }
+
         val user = readUserFromThreadContext(client)
 
         if (!validateUserBackendRoles(user, actionListener)) {
diff --git a/alerting/src/test/kotlin/org/opensearch/alerting/resthandler/MonitorRestApiIT.kt b/alerting/src/test/kotlin/org/opensearch/alerting/resthandler/MonitorRestApiIT.kt
index 02fceaf3a..32451e9e5 100644
--- a/alerting/src/test/kotlin/org/opensearch/alerting/resthandler/MonitorRestApiIT.kt
+++ b/alerting/src/test/kotlin/org/opensearch/alerting/resthandler/MonitorRestApiIT.kt
@@ -24,6 +24,7 @@ import org.opensearch.alerting.randomAction
 import org.opensearch.alerting.randomAlert
 import org.opensearch.alerting.randomAnomalyDetector
 import org.opensearch.alerting.randomAnomalyDetectorWithUser
+import org.opensearch.alerting.randomBucketLevelMonitor
 import org.opensearch.alerting.randomBucketLevelTrigger
 import org.opensearch.alerting.randomDocumentLevelMonitor
 import org.opensearch.alerting.randomDocumentLevelTrigger
@@ -107,6 +108,21 @@ class MonitorRestApiIT : AlertingRestTestCase() {
         assertEquals("Incorrect Location header", "$ALERTING_BASE_URI/$createdId", createResponse.getHeader("Location"))
     }
 
+    @Throws(Exception::class)
+    fun `test creating a bucket monitor`() {
+        val monitor = randomBucketLevelMonitor()
+
+        val createResponse = client().makeRequest("POST", ALERTING_BASE_URI, emptyMap(), monitor.toHttpEntity())
+
+        assertEquals("Create monitor failed", RestStatus.CREATED, createResponse.restStatus())
+        val responseBody = createResponse.asMap()
+        val createdId = responseBody["_id"] as String
+        val createdVersion = responseBody["_version"] as Int
+        assertNotEquals("response is missing Id", Monitor.NO_ID, createdId)
+        assertTrue("incorrect version", createdVersion > 0)
+        assertEquals("Incorrect Location header", "$ALERTING_BASE_URI/$createdId", createResponse.getHeader("Location"))
+    }
+
     fun `test creating a monitor with legacy ODFE`() {
         val monitor = randomQueryLevelMonitor()
         val createResponse = client().makeRequest("POST", LEGACY_OPENDISTRO_ALERTING_BASE_URI, emptyMap(), monitor.toHttpEntity())