curl --request GET \
  --url {schemes}://api.upsun.com/organizations/{organization_id}/projects/{project_id}/metrics/carbon \
  --header 'Authorization: Bearer <token>'

{
  "project_id": "<string>",
  "project_title": "<string>",
  "meta": {
    "from": "<unknown>",
    "to": "<unknown>",
    "interval": "<unknown>",
    "units": "<unknown>"
  },
  "values": [
    {
      "value": "<unknown>",
      "start_time": "<unknown>"
    }
  ],
  "total": 123
}