# Device Heartbeat APIs to retrieve information about device's heartbeat which contains the last seen details. ## Get heartbeat of a device which contains last seen information - [GET /device/v0/heartbeat/{id}/](https://develop-api.esper.io/openapi/device-heartbeat/getdeviceheartbeat.md) ## Get list of heartbeat for all devices - [GET /v2/heartbeat/](https://develop-api.esper.io/openapi/device-heartbeat/getdeviceheartbeatlist.md)