OI-weighted funding rate per coin — the honest carry number.

Plain averages overweight tiny venues. This endpoint weights each exchange's funding rate by its open interest on that instrument, so a 50bps rate on a $1M book doesn't drown out a 2bps rate on a $1B book.

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; ... }
// }

Array<{
  base: string;
  weightedRate: number | null;
  simpleAvgRate: number | null;
  totalOiUsd: number;
  exchangeCount: number;
  sampleCount: 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/funding/weighted?limit=20" \
  -H "Authorization: Bearer cg_live_YOUR_KEY"

{
  "data": [
    {
      "base": "BTC",
      "weightedRate": 0.00011,
      "simpleAvgRate": 0.00013,
      "totalOiUsd": 29500000000,
      "exchangeCount": 5,
      "sampleCount": 7
    }
  ],
  "meta": { "total": 1, "limit": 20 }
}

Notes

• `weightedRate` is null when every contributing exchange reports zero OI for the coin.
• Annualise via `rate × 3 × 365` (assumes 8h cadence).