diff --git a/changelog/30071.txt b/changelog/30071.txt
new file mode 100644
index 0000000000..acdf6277a2
--- /dev/null
+++ b/changelog/30071.txt
@@ -0,0 +1,3 @@
+```release-note:improvement
+activity: mount_type was added to the API response of sys/internal/counters/activity
+```
diff --git a/vault/activity/query.go b/vault/activity/query.go
index 8b9b773fd3..e82e7fc424 100644
--- a/vault/activity/query.go
+++ b/vault/activity/query.go
@@ -59,6 +59,7 @@ type MonthlyNamespaceRecord struct {
 
 type MountRecord struct {
 	MountPath string        `json:"mount_path"`
+	MountType string        `json:"mount_type"`
 	Counts    *CountsRecord `json:"counts"`
 }
 
diff --git a/vault/activity_log.go b/vault/activity_log.go
index 5f90b9a011..2a97796b13 100644
--- a/vault/activity_log.go
+++ b/vault/activity_log.go
@@ -1902,6 +1902,7 @@ type ResponseNewClients struct {
 
 type ResponseMount struct {
 	MountPath string          `json:"mount_path" mapstructure:"mount_path"`
+	MountType string          `json:"mount_type" mapstructure:"mount_type"`
 	Counts    *ResponseCounts `json:"counts"`
 }
 
@@ -2898,11 +2899,19 @@ func (a *ActivityLog) calculateByNamespaceResponseForQuery(ctx context.Context,
 		if err != nil {
 			return nil, nil, err
 		}
+		var displayPath string
+		if ns == nil {
+			displayPath = fmt.Sprintf(DeletedNamespaceFmt, nsRecord.NamespaceID)
+		} else {
+			displayPath = ns.Path
+		}
 		if a.includeInResponse(queryNS, ns) {
 			mountResponse := make([]*ResponseMount, 0, len(nsRecord.Mounts))
 			for _, mountRecord := range nsRecord.Mounts {
+				mountType := a.mountPathToMountType(ctx, strings.Join([]string{namespace.Canonicalize(displayPath), mountRecord.MountPath}, ""))
 				mountResponse = append(mountResponse, &ResponseMount{
 					MountPath: mountRecord.MountPath,
+					MountType: mountType,
 					Counts:    a.countsRecordToCountsResponse(mountRecord.Counts),
 				})
 			}
@@ -2911,12 +2920,6 @@ func (a *ActivityLog) calculateByNamespaceResponseForQuery(ctx context.Context,
 				return mountResponse[i].Counts.Clients > mountResponse[j].Counts.Clients
 			})
 
-			var displayPath string
-			if ns == nil {
-				displayPath = fmt.Sprintf(DeletedNamespaceFmt, nsRecord.NamespaceID)
-			} else {
-				displayPath = ns.Path
-			}
 			nsCounts := a.namespaceRecordToCountsResponse(nsRecord)
 			byNamespaceResponse = append(byNamespaceResponse, &ResponseNamespace{
 				NamespaceID:   nsRecord.NamespaceID,
@@ -2981,23 +2984,26 @@ func (a *ActivityLog) prepareNamespaceResponse(ctx context.Context, nsRecords []
 		}
 		if a.includeInResponse(queryNS, ns) {
 			mountResponse := make([]*ResponseMount, 0, len(nsRecord.Mounts))
-			for _, mountRecord := range nsRecord.Mounts {
-				if !mountRecord.Counts.HasCounts() {
-					continue
-				}
-
-				mountResponse = append(mountResponse, &ResponseMount{
-					MountPath: mountRecord.MountPath,
-					Counts:    a.countsRecordToCountsResponse(mountRecord.Counts),
-				})
-			}
-
 			var displayPath string
 			if ns == nil {
 				displayPath = fmt.Sprintf(DeletedNamespaceFmt, nsRecord.NamespaceID)
 			} else {
 				displayPath = ns.Path
 			}
+
+			for _, mountRecord := range nsRecord.Mounts {
+				if !mountRecord.Counts.HasCounts() {
+					continue
+				}
+
+				mountType := a.mountPathToMountType(ctx, strings.Join([]string{namespace.Canonicalize(displayPath), mountRecord.MountPath}, ""))
+				mountResponse = append(mountResponse, &ResponseMount{
+					MountPath: mountRecord.MountPath,
+					MountType: mountType,
+					Counts:    a.countsRecordToCountsResponse(mountRecord.Counts),
+				})
+			}
+
 			nsResponse := &ResponseNamespace{
 				NamespaceID:   nsRecord.NamespaceID,
 				NamespacePath: displayPath,
diff --git a/vault/activity_log_util_common.go b/vault/activity_log_util_common.go
index d6452b6bf2..45f393ac4b 100644
--- a/vault/activity_log_util_common.go
+++ b/vault/activity_log_util_common.go
@@ -392,7 +392,9 @@ func (a *ActivityLog) sortActivityLogMonthsResponse(months []*ResponseMonth) {
 
 const (
 	noMountAccessor     = "no mount accessor (pre-1.10 upgrade?)"
+	noMountPath         = "no mount path (pre-1.10 upgrade?)"
 	DeletedMountFmt     = "deleted mount; accessor %q"
+	DeletedMountPath    = "deleted mount"
 	DeletedNamespaceFmt = "deleted namespace %q"
 )
 
@@ -416,6 +418,26 @@ func (a *ActivityLog) mountAccessorToMountPath(mountAccessor string) string {
 	return displayPath
 }
 
+// mountPathToMountType transforms the mount path to the mount type
+// returns a placeholder string if the mount path is empty or deleted
+func (a *ActivityLog) mountPathToMountType(ctx context.Context, mountPath string) string {
+	var mountType string
+	if mountPath == "" {
+		mountType = noMountPath
+	} else {
+		path, valResp := a.core.router.MatchingMountAndEntry(ctx, mountPath)
+		if path == "" {
+			mountType = DeletedMountPath
+		} else {
+			mountType = valResp.Type
+			if !strings.HasSuffix(mountType, "/") {
+				mountType += "/"
+			}
+		}
+	}
+	return mountType
+}
+
 type singleTypeSegmentReader struct {
 	basePath         string
 	startTime        time.Time