Get all providers

curl --request GET \
  --url https://cloud.volttime.com/api/v3/providers \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "name": "Price Ltd",
      "websocket_url": "ws://dare.org"
    },
    {
      "name": "Tromp-Leffler",
      "websocket_url": "ws://mitchell.info"
    }
  ]
}