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GET /v1/funding

Mark/index price and latest funding rate

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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/aster-api

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Code snippets

curl "https://api.oanor.com/aster-api/v1/funding" \
  -H "x-oanor-key: oanor_test_..."
await fetch("https://api.oanor.com/aster-api/v1/funding", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
$ch = curl_init("https://api.oanor.com/aster-api/v1/funding");
curl_setopt($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/aster-api/v1/funding",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

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

{
    "data": {
        "symbol": "BTCUSDT",
        "mark_price": 65935.2,
        "index_price": 65972.03217391,
        "interest_rate": 0.0001,
        "last_funding_rate": -2.174e-5,
        "next_funding_time": 1781539200000,
        "estimated_settle_price": 65805.93467271
    },
    "meta": {
        "timestamp": "2026-06-15T11:15:51.401Z",
        "request_id": "c3eaa6dd-6414-40fc-b177-33d45b168a12"
    },
    "status": "ok",
    "message": "Funding retrieved successfully",
    "success": true
}