# Start actions and live data

**SUBSCRIBE live/{instrument}**

Start an action or start/stop live data.
Live data, status updates and actions

Only online noise instruments are supported through this API. If an instrument is online you can connect the websocket, if the instrument goes offline the websocket will be closed.

Requires an API key with the `instruments:read` scope to make the connection and begin receiving status updates. Other actions require additional scopes.