curl -X GET https://api.mailofly.com/api-keys \
  -H "Authorization: Bearer mf_live_your_api_key"

{
  "data": [
    {
      "id": "key_123456",
      "name": "Production App",
      "secret_suffix": "9aBc",
      "last_used_at": "2026-09-11T13:58:00Z",
      "expires_at": null,
      "created_at": "2026-09-11T10:00:00Z"
    }
  ]
}