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SiteCheck Perpetuals Markets
x402
SiteCheck Perpetuals Markets is a paid API for AI agents from api.sitecheck-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-28).
Returns live perpetual futures market data (mark price, oracle price, funding rate, open interest, volume) for crypto assets via Hyperliquid
Price / call$0.002
Success—
StatusUnknown
How this service works
Hyperliquid perpetual futures: mark and oracle price, hourly and annualised funding, open interest in coins and USD, 24 h volume and maximum leverage, sorted by volume. With coin, that market only. Public data, cached 30 seconds. Information only, not financial advice.
Output
A JSON object containing an array of perpetual market records sourced from Hyperliquid, each with coin symbol, mark price, oracle price, max leverage, 24h USD volume, hourly and annualized funding rate, open interest in USD and coins, plus a timestamp and total market count.
Example use cases
Monitor BTC perp funding rates
“Can you pull the latest funding rate and open interest for BTC perpetuals right now? I want to see if the annualized rate is above 10%.”
Screen top crypto perp markets
“Show me the top 20 crypto perpetual markets ranked by 24-hour USD volume, including their mark prices and max leverage available.”
Track ETH perp oracle vs mark price spread
“Get me the current mark price and oracle price for ETH perpetuals so I can see how large the spread is right now.”
Technical details
Endpoint
GEThttps://api.sitecheck-api.workers.dev/api/perps/markets?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need real-time perpetual futures market data including funding rates, open interest, and mark prices sourced from Hyperliquid. Prefer it over generic crypto price endpoints when derivatives-specific metrics like funding rate, max leverage, or open interest are required.
Side effects
- Invalid coin symbol returns empty markets array or error
- limit parameter outside 1-50 range may be clamped or rejected
- Upstream Hyperliquid API unavailability causes 502 or timeout
- Payment not included or insufficient results in 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"source": "https://api.hyperliquid.xyz/info (metaAndAssetCtxs)",
"markets": [
{
"coin": "BTC",
"markPx": 83395,
"oraclePx": 83429.1,
"maxLeverage": 40,
"volume24hUsd": 1991620476,
"fundingHourly": 0.0000125,
"openInterestUsd": 3155280795,
"openInterestCoins": 37835.37136,
"fundingAnnualizedPct": 10.95
}
],
"checkedAt": "2026-10-14T07:00:22.018Z",
"disclaimer": "Information only, not financial advice.",
"marketCount": 178
}
}Tags
x402
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