$0.02
per call · USD Coin on Base
Crypto Perp Snapshot ($0.02/call): One-call perpetual-futures snapshot for a coin (BTC, ETH, SOL, ...): funding rate and open interest across Binance, Bybit and OKX, aggregate OI, average funding (annualized) with a longs-pay/shorts-pay read, mark price, next funding time and the Fear & Greed index. Keyless public exchange data; normalized so a trading agent gets one JSON instead of three exchange schemas.
Endpoint
GET https://x402.botsmith.dev/derivatives/perp2
Calls / 30d
2
Unique payers / 30d
Sep 10
Last called
exact
Payment scheme
Call this service
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";
const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);
const res = await fetchWithPay("https://x402.botsmith.dev/derivatives/perp", {
method: "GET",
});
const data = await res.json();curl -X GET \
"https://x402.botsmith.dev/derivatives/perp?symbol=BTC" \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"aggregateOpenInterestBase": 186847,
"avgFundingAnnualizedPct": -0.69,
"avgFundingRate": -0.0000063,
"fearGreed": {
"classification": "Extreme Fear",
"value": 25
},
"fundingSkew": "neutral",
"markPrice": 64587.4,
"nextFundingTime": "2026-07-18T16:00:00.000Z",
"symbol": "BTC-PERP",
"venues": [
{
"fundingRate": 0.00001117,
"fundingRateAnnualizedPct": 1.22,
"markPrice": 64587.4,
"openInterestBase": 101352.15,
"venue": "binance"
},
{
"fundingRate": -0.00001327,
"fundingRateAnnualizedPct": -1.45,
"markPrice": 64593,
"openInterestBase": 54447.45,
"venue": "bybit"
},
{
"fundingRate": -0.0000169,
"fundingRateAnnualizedPct": -1.85,
"markPrice": 64599.9,
"openInterestBase": 31047.62,
"venue": "okx"
}
]
}Payment details
0xcb9b3f94387389e38ef2a7b3c0b851fb8325d7e9USD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
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