curl --request POST \
  --url https://api.altostrat.io/radius/tags \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "<string>",
  "color": "<string>"
}
'

{
  "id": "<string>",
  "name": "<string>",
  "color": "<string>",
  "user_count": 123,
  "group_count": 123
}