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GET /v1/overview

Aggregate derivatives market: total OI, volume, pairs

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10 free calls per day — no sign-up, no API key. Goes through the oanor gateway.

Custom headers (optional)
api.oanor.com/cryptoderivatives-api

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Code snippets

curl "https://api.oanor.com/cryptoderivatives-api/v1/overview" \
  -H "x-oanor-key: oanor_test_..."
await fetch("https://api.oanor.com/cryptoderivatives-api/v1/overview", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
$ch = curl_init("https://api.oanor.com/cryptoderivatives-api/v1/overview");
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$out = curl_exec($ch);
import requests
requests.get(
    "https://api.oanor.com/cryptoderivatives-api/v1/overview",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

A real response from this endpoint, captured by the latest health check.

{
    "data": {
        "source": "CoinGecko derivatives exchanges",
        "exchange_count": 50,
        "top_exchanges_by_oi": [
            {
                "name": "Binance (Futures)",
                "open_interest_btc": 357500
            },
            {
                "name": "Bybit (Futures)",
                "open_interest_btc": 146853
            },
            {
                "name": "Hyperliquid (Futures)",
                "open_interest_btc": 146659
            },
            {
                "name": "MEXC (Futures)",
                "open_interest_btc": 141033
            },
            {
                "name": "Gate (Futures)",
                "open_interest_btc": 133952
            }
        ],
        "total_volume_24h_btc": 6557890.7,
        "total_perpetual_pairs": 20841,
        "total_open_interest_btc": 2632832.8
    },
    "meta": {
        "timestamp": "2026-06-15T20:40:37.367Z",
        "request_id": "4ee2beda-532d-4806-8072-961e89cd55d3"
    },
    "status": "ok",
    "message": "Derivatives market overview retrieved",
    "success": true
}