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Usenami · Perp Open Interest

by Usenami

GETBase

$0.001

per call · USD Coin on Base

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.

Endpoint

GET https://api.usenami.io/v1/perp/open-interest

6

Calls / 30d

2

Unique payers / 30d

Sep 9

Last called

exact

Payment scheme

Call this service

TypeScript · @x402/fetch
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/open-interest", {
  method: "GET",
});
const data = await res.json();
cURL
curl -X GET \
  "https://api.usenami.io/v1/perp/open-interest?canonical_id=%5Bobject+Object%5D&ticker=%5Bobject+Object%5D&venue=%5Bobject+Object%5D" \
  -H "X-PAYMENT: <signed x402 payment>"

Example response

{
  "canonical_id": "btc-crypto",
  "mark_price": 76540.45,
  "open_interest_raw": 98650.31,
  "ticker": "BTC",
  "units_note": "open_interest values are raw per venue ...",
  "updated_at": "2026-05-26T17:03:12Z",
  "venue": "binance"
}

Payment details

Pay to0x1538726707212f4db3eb67cec0910422a310475c
AssetUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913
NetworksBase
Schemesexact

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