curl --request POST \
  --url https://cronho.st/api/v1/notification-channels \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "type": "email",
  "label": "On-call inbox",
  "config": {
    "to": "oncall@example.com"
  }
}
'

{
  "data": {
    "id": "channel_123",
    "type": "slack",
    "verified": true,
    "label": "Ops alerts",
    "createdAt": "2024-01-01T12:00:00.000Z",
    "updatedAt": "2024-01-02T12:00:00.000Z"
  },
  "success": true
}