Node-RED

You need to connect valetudo to the same MQTT Broker as your Node-RED.

Build your flows with mqtt in and mqtt out nodes using the valetudo topics.

To draw a map for your Dashboard you can use node-red-contrib-valetudo.

If you also enable Homie and install the flow node-red-contrib-homie-convention, autodiscovery should work with Node-RED as well.