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Vextorium Perpetual Funding Rates
x402
Vextorium Perpetual Funding Rates is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.009/call, status unknown (last checked 2026-10-19).
Returns perpetual futures funding rates, open interest, mark/oracle prices, and volume for crypto assets, or a ranked list of markets by funding rate or open interest
Price / call$0.009
Success—
StatusUnknown
How this service works
558 pay-per-call data APIs for AI agents: Solana and EVM on-chain data, tokenized stocks, DeFi, Hyperliquid, economy and official statistics, FX, validation, web and developer tools. Pay in USDC via x402.
Output
A JSON object (single coin) or array (ranking) containing: source exchange, currency, who pays direction, mark price, oracle price, premium percentage, max leverage, open interest (coins and USD), 24h volume USD, 24h price change percentage, funding interval, current hourly funding percentage, annual funding percentage, 7-day average annual funding, and 24h average annual funding.
Example use cases
Monitor BTC funding rate for carry trade
“Check the current hourly and annual funding rate for BTC perps on Hyperliquid — tell me who's paying, the mark price vs oracle price, and the 7-day average annual funding so I can evaluate a cash-and-carry trade.”
Screen markets by highest funding
“Give me the top 20 perpetual markets ranked by highest funding rate, only include ones with at least $5 million in open interest — I want to spot where funding is extreme right now.”
Evaluate ETH perp position cost
“What's the current annual funding rate for ETH perpetual futures? I need the hourly rate, the 24h average annual rate, and the open interest in USD to decide whether to hold my long position overnight.”
Technical details
Endpoint
POSThttps://api.vextorium.com/v1/perp-funding?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need live perpetual futures funding rates, open interest, or market rankings from Hyperliquid. Prefer this over generic DeFi APIs when you specifically need Hyperliquid data, funding direction (who pays), multi-timeframe averages (hourly, 24h, 7d), and the ability to screen and rank markets by funding extremity or open interest.
Side effects
- Invalid or unsupported coin symbol returns error or empty result
- Limit out of range (must be 1-100) returns validation error
- Missing required body fields returns 400 bad request
- min_interest_usd set too high may return empty ranking
- Payment not settled via x402 returns 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | integer | Markets in the ranking (1-100, default 20) |
| order | string | Ranking order when no coin is given |
| currency | string | Coin, e.g. BTC, ETH, SOL, HYPE. Omit for a ranking of markets |
| min_interest_usd | number | Minimum open interest in USD for the ranking (default 1000000) |
Output
Schema · Response
{
"type": "json",
"example": {
"source": "Hyperliquid (public L1 data, api.hyperliquid.xyz)",
"currency": "BTC",
"who_pays": "longs pay shorts",
"mark_price": 84028,
"premium_pct": -0.0467,
"max_leverage": 40,
"oracle_price": 84068.3,
"open_interest": 33164.47324,
"change_24h_pct": 1.26,
"volume_24h_usd": 2276212187,
"funding_interval": "hourly",
"open_interest_usd": 2786744357,
"annual_funding_pct": 5.7,
"hourly_funding_pct": 0.00065,
"avg_annual_funding_7d_pct": 8.8,
"avg_annual_funding_24h_pct": 6.4
}
}Tags
x402
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