There are 1 repository under mqtt-discovery topic.
Linux service to collect and transfer Raspberry Pi data via MQTT to Home Assistant (for RPi Monitoring)
Send data from Fine Offset weather stations (Ecowitt, Ambient Weather, Froggit, etc.) to MQTT!
Python module to create MQTT entities that are automatically discovered by Home Assistant
Control your Buderus Logamatic 2107 or HS-2105 with MQTT or Home Assistant
SwitchBot MQTT Home Assistant add-on
ESP8266+NRF24LE1 gateway and NRF24LE1 remote switch for livolo etc.
zmai-90_tywe3s_mqtt_gateway
Neptune Apex to HASS MQTT gateway
Extension of HA mqtt_statestream integration with discovery config publishing
Homeassistant compatible MQTT Light implementation for RGB+CCT LEDs
Arduino library and examples of usage WS2812B led effects as a homeassistant MQTT Light integration with discovery
1.4" LCD Air quality monitor (BME280, RTC_DS1307, MHZ19) as a homeassistant MQTT Sensor integration with discovery