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GET /v1/scan

Majors ranked by basis

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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/cryptobasis-api

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Code snippets

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

Example response

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

{
    "data": {
        "coins": [
            {
                "base": "BTC",
                "symbol": "BTCUSDT",
                "basis_abs": -35.5,
                "basis_pct": -0.0565,
                "structure": "backwardation",
                "mark_price": 62827.44,
                "perp_price": 62821.2,
                "spot_price": 62856.7,
                "index_price": 62859.33,
                "funding_rate": -5.56e-6,
                "funding_8h_pct": -0.0006,
                "funding_annualized_pct": -0.61,
                "mark_index_premium_pct": -0.0507
            },
            {
                "base": "XRP",
                "symbol": "XRPUSDT",
                "basis_abs": 0,
                "basis_pct": -0.0607,
                "structure": "backwardation",
                "mark_price": 1.1529,
                "perp_price": 1.1529,
                "spot_price": 1.1536,
                "index_price": 1.1538,
                "funding_rate": -0.00021722,
                "funding_8h_pct": -0.0217,
                "funding_annualized_pct": -23.79,
                "mark_index_premium_pct": -0.078
            },
            {
                "base": "ETH",
                "symbol": "ETHUSDT",
                "basis_abs": -1.15,
                "basis_pct": -0.069,
                "structure": "backwardation",
                "mark_price": 1665.76,
                "perp_price": 1665.75,
                "spot_price": 1666.9,
                "index_price": 1666.8,
                "funding_rate": -0.0002377,
                "funding_8h_pct": -0.0238,
                "funding_annualized_pct": -26.03,
                "mark_index_premium_pct": -0.0624
            },
            {
                "base": "DOGE",
                "symbol": "DOGEUSDT",
                "basis_abs": 0,
                "basis_pct": -0.0703,
                "structure": "backwardation",
                "mark_price": 0.0853,
                "perp_price": 0.0853,
                "spot_price": 0.08536,
                "index_price": 0.08535,
                "funding_rate": 6.451e-5,
                "funding_8h_pct": 0.0065,
                "funding_annualized_pct": 7.06,
                "mark_index_premium_pct": -0.0586
            },
            {
                "base": "SOL",
                "symbol": "SOLUSDT",
                "basis_abs": -0.05,
                "basis_pct": -0.0759,
                "structure": "backwardation",
                "mark_price": 65.834,
                "perp_price": 65.83,
                "spot_price": 65.88,
                "index_price": 65.88,
                "funding_rate": -0.00018018,
                "funding_8h_pct": -0.018,
                "funding_annualized_pct": -19.73,
                "mark_index_premium_pct": -0.0698
            },
            {
                "base": "LINK",
                "symbol": "LINKUSDT",
                "basis_abs": -0.01,
                "basis_pct": -0.0763,
                "structure": "
…