home-assistant.io/source/_integrations/sensor.websocket_api.markdown

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---
title: "Websocket Connections Sensor"
description: "Instructions on how to count connected clients within Home Assistant."
logo: home-assistant.png
ha_category:
- Utility
- Sensor
ha_release: 0.33
ha_iot_class: Local Push
ha_quality_scale: internal
ha_domain: websocket_api
---
The `websocket_api` sensor platform shows how many clients are connected to the stream API.
## Configuration
To add the connected clients to your installation, add the following to your `configuration.yaml` file:
```yaml
# Example configuration.yaml entry
sensor:
- platform: websocket_api
```
### Note
This replaces the previous `api_streams` sensor.
The default sensor name is `connected_clients`.