Dy doing a `GET` call using the cluster id
curl --netrc -X GET \
https://dbc-a1b2345c-d6e7.cloud.databricks.com/api/2.0/clusters/get \
--data '{ "cluster_id": "1234-567890-myclustID" }' \
| jq .
The response json will have a `state` tag which will look like this:
{
"cluster_id": "1234-567890-myclustID",
...
"state": "TERMINATED",
"state_message": "Inactive cluster terminated (inactive for 120 minutes).",
...
}