Perp Basis

Last 30 days

Uptime

100%

Response time

192 ms typical, 329 ms slowest 5%

Last check

56 min ago

Next check

any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://agent402.tools/api/perp-basis" \
  -H "content-type: application/json" \
  -d '{"coin":"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%2Fagent402.tools%2Fapi%2Fperp-basis
const res = await pay("https://agent402.tools/api/perp-basis", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"coin":"BTC"}),
});
console.log(await res.json());

Example input

{
  "coin": "BTC"
}

Example output

{
  "coin": "BTC",
  "fetchedAt": "2026-08-22T12:00:00.000Z",
  "funding": {
    "aprPct": 10.95,
    "hourly": 0.0000125,
    "per8h": 0.0001
  },
  "impactPremiumPct": 0.0388,
  "markOraclePremiumBps": 4.01,
  "markOraclePremiumPct": 0.0401,
  "markPx": 77267,
  "midPx": 77266.5,
  "oraclePx": 77236,
  "predictedFunding": [
    {
      "aprPct": 10.95,
      "fundingIntervalHours": 1,
      "fundingRate": 0.0000125,
      "nextFundingTime": "2026-08-22T13:00:00.000Z",
      "per8h": 0.0001,
      "venue": "HlPerp"
    }
  ],
  "source": "hyperliquid"
}

Security scan

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

Recent checks