curl --request GET \
  --url https://restapi.fax.plus/v3/accounts/self/ai/credits \
  --header 'Authorization: Bearer <token>'

{
  "credits_remaining": 450,
  "usage": [
    {
      "feature": "ocr",
      "credits_used": 30
    },
    {
      "feature": "field_extraction",
      "credits_used": 20
    }
  ],
  "reload_at": "2026-04-01T00:00:00Z"
}