curl --request GET \
  --url https://production.runalloy.com/metadata/credentials \
  --header 'Authorization: <authorization>' \
  --header 'x-api-version: <x-api-version>'

{
  "data": [
    {
      "connector": "acuityScheduling",
      "icon": "https://cdn.runalloy.com/icons/acuityScheduling.png",
      "isOauth": false,
      "properties": [
        {
          "name": "apiKey",
          "displayName": "API Key"
        },
        {
          "name": "userId",
          "displayName": "User Id"
        }
      ]
    },
    {
      "connector": "amazonBusiness",
      "icon": "https://cdn.runalloy.com/icons/amazonBusiness.png",
      "isOauth": true,
      "properties": [
        {
          "name": "regionCountry",
          "displayName": "Country",
          "description": ""
        }
      ]
    }
  ]
}