$0.002
per call · USD Coin on Base
Consolidated best bid and ask for one crypto perpetual across every tracked venue — the cross-venue BBO, and which venue holds each side. CEX and DEX perp venues in one quote.
Endpoint
GET https://api.usenami.io/v1/orderbook/aggregate/:symbol4
Calls / 30d
2
Unique payers / 30d
Sep 1
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://api.usenami.io/v1/orderbook/aggregate/:symbol", {
method: "GET",
});
const data = await res.json();curl -X GET \
"https://api.usenami.io/v1/orderbook/aggregate/:symbol" \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"best_ask": {
"price": 3850.5,
"size": 8.5,
"venue": "okx"
},
"best_bid": {
"price": 3850.25,
"size": 10,
"venue": "binance"
},
"symbol": "ETH-PERP"
}Payment details
0x1538726707212f4db3eb67cec0910422a310475cUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
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Usenami · Funding Current
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Live perpetual-futures funding rates per venue for one crypto symbol, or the whole cross-venue set in one call. Major CEX and DEX perp venues — Binance, Bybit, OKX, Bitget, Gate.io, KuCoin, Hyperliquid, Paradex, Drift, Orderly, Lighter and more. Each row carries the venue's current rate, its funding interval and the 8h-equivalent rate (venues quote on 1h/4h/8h schedules, so the raw rates are not comparable without it), plus canonical_id, asset_class and mark_price so a ticker that names two…
Usenami · Perp Basis
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Per-venue basis for one crypto perpetual — mark versus index price, basis_bps = (mark−index)/index×10000, and contango/backwardation structure, across tracked CEX and DEX perp venues. Every venue comes with an index except Crypto.com, Variational and dYdX; dYdX publishes one oracle price, and that price is its mark. `venues_without_index` names the ones missing from your response. Each venue also carries liquidity_state (live/dead/unknown), and a market with no trading is flagged unreliable however clean its basis looks.
Usenami · Perp Open Interest
api.usenami.io
Open interest per venue for one crypto perpetual, with mark_price alongside — positioning and crowding across tracked CEX and DEX perp venues. Raw value: units vary per venue, see units_note in the response.