curl --request GET \
  --url https://api-v2.missioninbox.com/billing/address/ \
  --header 'Authorization: Basic <encoded-value>'

{
  "data": {
    "line1": "<string>",
    "line2": "<string>",
    "city": "<string>",
    "state": "<string>",
    "postal_code": "<string>",
    "country": "<string>",
    "name": "<string>"
  }
}