curl --request GET \
  --url https://api.closebot.com/agency/billing/usages \
  --header 'X-CB-KEY: <api-key>'

[
  {
    "startTime": "2023-11-07T05:31:56Z",
    "endTime": "2023-11-07T05:31:56Z",
    "responses": 123,
    "libraryBytes": 123,
    "users": 123,
    "responseCost": 123,
    "libraryCost": 123,
    "userCost": 123
  }
]