curl --request GET \
  --url https://api.staging.getmodus.com/api/v1/usage \
  --header 'Authorization: Bearer <token>'

{
  "org_id": "<string>",
  "since": "<string>",
  "until": "<string>",
  "buckets": [
    {
      "bucket": "<string>",
      "model": "<string>",
      "call_count": 123,
      "input_tokens": 123,
      "output_tokens": 123
    }
  ],
  "totals": {
    "call_count": 123,
    "input_tokens": 123,
    "output_tokens": 123
  }
}