curl --request GET \
  --url https://app.textql.com/v2/connectors/types \
  --header 'Authorization: Bearer <token>'

{
  "types": [
    {
      "connector_type": "<string>",
      "config_key": "<string>",
      "fields": [
        {
          "name": "<string>",
          "type": "<string>",
          "confidential": true,
          "optional_on_update": true
        }
      ]
    }
  ]
}