You need at least HASS.Agent 2022.13.0 for this integration to work!
This Home Assistant integration by @fillefilip8 allows you to send notifications to HASS.Agent, a Windows-based Home Assistant client. It also allows you to use it as a mediaplayer device: see and control what's playing and send text-to-speech.
All communication is done through MQTT: no more configuring the legacy local API. It also supports auto discovery, so you'll see your HASS.Agent devices show up automatically! You can still add your device manually (through the UI) if you want to use the local API instead.
Need help? Check the documentation, visit the dedicated HA forum thread or join on Discord.
Note: it won't be of much use if you don't have HASS.Agent installed & configured on at least one PC (or Windows based device).