$0.003
per call · USD Coin on Base
Cross-venue mark-price spread scan for crypto perpetuals — where the same perp trades at different marks across venues. Quoted spread is not net edge: it excludes fees, slippage and funding differences.
Endpoint
GET https://api.usenami.io/v1/perp/arbitrage/price5
Calls / 30d
3
Unique payers / 30d
Sep 8
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/perp/arbitrage/price", {
method: "GET",
});
const data = await res.json();curl -X GET \
"https://api.usenami.io/v1/perp/arbitrage/price?limit=%5Bobject+Object%5D&min_diff_bps=%5Bobject+Object%5D" \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"count": 1,
"min_diff_bps": 10,
"opportunities": [
{
"max_price": 0.0855,
"max_venue": "mexc",
"mid_price": 0.0853,
"min_price": 0.0851,
"min_venue": "binance",
"spread_bps": 46.89,
"ticker": "DOGE",
"updated_at": "2026-05-26T17:03:09Z",
"venues_count": 14
}
]
}Payment details
0x1538726707212f4db3eb67cec0910422a310475cUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
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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.