curl --request GET \
  --url https://lb.routeme.sh/usage \
  --header 'X-Mgmt-Key: <api-key>'

{
  "customer_id": 123,
  "period": {
    "from": "2023-11-07T05:31:56Z",
    "to": "2023-11-07T05:31:56Z"
  },
  "summary": {
    "credits_consumed": 123,
    "request_count": 123,
    "credits_per_request": 123
  },
  "balance": {
    "credits": 123,
    "as_of": "2023-11-07T05:31:56Z"
  },
  "by_chain": [
    {
      "chain_id": "<string>",
      "credits_consumed": 123,
      "request_count": 123
    }
  ],
  "by_api_key": [
    {
      "api_key_id": 123,
      "key_hint": "<string>",
      "credits_consumed": 123,
      "request_count": 123,
      "name": "<string>"
    }
  ],
  "by_api_key_chain": [
    {
      "api_key_id": 123,
      "key_hint": "<string>",
      "chain_id": "<string>",
      "credits_consumed": 123,
      "request_count": 123,
      "name": "<string>"
    }
  ],
  "top_methods": [
    {
      "method": "<string>",
      "credits_consumed": 123,
      "request_count": 123
    }
  ],
  "time_series": [
    {
      "bucket": "2023-11-07T05:31:56Z",
      "credits_consumed": 123,
      "request_count": 123
    }
  ],
  "by_scenario": [
    {
      "scenario": "<string>",
      "credits_consumed": 123,
      "request_count": 123
    }
  ],
  "groups": [
    {
      "credits_consumed": 123,
      "request_count": 123,
      "api_key_id": 123,
      "name": "<string>",
      "key_hint": "<string>",
      "chain_id": "<string>",
      "method": "<string>",
      "scenario": "<string>",
      "day": "<string>"
    }
  ]
}