curl https://api.expys.com/v1/analytics/timeseries \
  -H "Authorization: Bearer YOUR_ORG_API_KEY"

{
  "buckets": [
    {
      "endTime": "<string>",
      "pointsMinted": 123,
      "pointsSpent": 123,
      "signups": 123,
      "startTime": "<string>"
    }
  ]
}