curl https://api.img-src.io/api/v1/usage \
  -H "Authorization: Bearer imgsrc_YOUR_API_KEY"

{
  "usage": {
    "transformations": {
      "used": 750,
      "limit": 1000,
      "percentage": 75
    },
    "storage": {
      "used_bytes": 104857600,
      "limit_bytes": 1073741824,
      "percentage": 10
    },
    "bandwidth": {
      "used_bytes": 5368709120,
      "limit_bytes": 10737418240,
      "percentage": 50
    }
  },
  "billing_period": {
    "start": 1704067200,
    "end": 1706745600
  },
  "plan": "free"
}