ToolVet
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Derivatives

by Onchain Query API in Onchain & crypto

x402 APIPassing, checked 2 h ago

Crypto perpetual-futures snapshot for a symbol in ONE call (Binance USD-M, keyless): current funding rate and the next funding time, mark and index price, open interest (contracts and USD), 24h price change/high/low/volume, and the top-trader long/short account ratio. For funding arbitrage, leverage/positioning reads, and a derivatives view an onchain-only feed cannot give. Cached 30s.

GET https://chain.cyberwarex.com/derivatives

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
273 ms typical, 273 ms slowest 5%
Last check
2 h ago
Next check
any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X GET "https://chain.cyberwarex.com/derivatives?symbol=BTC"
import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fchain.cyberwarex.com%2Fderivatives
const res = await pay("https://chain.cyberwarex.com/derivatives?symbol=BTC");
console.log(await res.json());

Example input

{
  "symbol": "BTC"
}

Example output

{
  "funding_rate": 0.00006,
  "funding_rate_annualized_pct": 6.57,
  "high_24h": 79000,
  "index_price": 78700.1,
  "long_short_ratio": 1.8,
  "low_24h": 77000,
  "mark_price": 78726.5,
  "next_funding_time": 1789142400000,
  "open_interest": 104466.34,
  "open_interest_usd": 8220000000,
  "perp": "BTCUSDT",
  "price_change_24h_pct": 1.75,
  "source": "binance-futures",
  "symbol": "BTC",
  "volume_24h": 180434.2
}

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
2 h agoPassed402218 ms$0.005
5 h agoPassed402273 ms$0.005
11 h agoPassed402280 ms$0.005