Per-coin OI history — aggregate + per-exchange split in 5-minute buckets.

Same shape as `/api/v1/open-interest` in per-coin mode, exposed under the futures namespace. Supply a `source` to narrow the per-source breakdown.

Query parameters

All query parameters are optional unless marked required.

Response shape

Always wrapped in the standard envelope. Nullable fields are explicitly marked — treat missing numeric data as a real data-source gap, not as an error.

// Wrapped in the standard envelope:
// {
//   data: /* shape below */,
//   meta?: { total?: number; limit?: number; offset?: number; ... }
// }

{
  base: string;
  window: { label: string; hours: number };
  history: Array<{ ts: number; oiUsd: number }>;
  perSource: Record<string, Array<{ ts: number; oiUsd: number }>>;
}

Example

Copy the curl, replace YOUR_KEY with a real key from your dashboard, and run.

curl -sS "http://localhost:3000/api/v1/futures/oi/history?coin=BTC&window=24h" \
  -H "Authorization: Bearer cg_live_YOUR_KEY"

{
  "data": {
    "base": "BTC",
    "window": { "label": "24h", "hours": 24 },
    "history": [{ "ts": 1744820400000, "oiUsd": 28453120000 }],
    "perSource": { "binance_futures": [{ "ts": 1744820400000, "oiUsd": 12410200000 }] }
  },
  "meta": { "total": 1, "window": "24h" }
}