curl --request GET \
  --url https://app.flowglad.com/api/v1/usage-meters \
  --header 'Authorization: <api-key>'

{
  "data": [
    {
      "id": "<string>",
      "createdAt": "<string>",
      "updatedAt": "<string>",
      "createdByCommit": "<string>",
      "updatedByCommit": "<string>",
      "livemode": true,
      "organizationId": "<string>",
      "name": "<string>",
      "pricingModelId": "<string>",
      "slug": "<string>",
      "aggregationType": "sum"
    }
  ],
  "currentCursor": "<string>",
  "nextCursor": "<string>",
  "hasMore": true,
  "total": 123
}