واجهة المطورين

GET /rates/usd/history?from=2026-09-16&to=2026-10-16&interval=day

{
  "currency": "USD",
  "interval": "day",
  "points": [
    { "date": "2026-10-16", "open": 53.40, "high": 53.55, "low": 53.37, "close": 53.53, "bank_average": 53.52 }
  ]
}