---
type: api
title: Fleet Message Signing Service
description: Enables you to rotate message signing key pairs for secure Fleet communication.
url: https://www.elastic.co/elastic/docs-builder/docs/4371/api/doc/kibana-serverless/group/endpoint-message-signing-service
resource: https://www.elastic.co/elastic/docs-builder/docs/4371/api/doc/kibana-serverless/group/endpoint-message-signing-service
products:
  - Kibana
---

# Fleet Message Signing Service

`Message Signing Service`

Enables you to rotate message signing key pairs for secure Fleet communication.

- [Rotate a Fleet message signing key pair](https://www.elastic.co/elastic/docs-builder/docs/4371/api/doc/kibana-serverless/operation/operation-post-fleet-message-signing-service-rotate-key-pair): `POST` `/api/fleet/message_signing_service/rotate_key_pair`, `POST` `/s/{space_id}/api/fleet/message_signing_service/rotate_key_pair`