OPUSDT

OP / USDT

0.126

▼ 8.16% today

Last 24 hours

Bid

0.1259

Ask

0.1261

Day High

0.1412

Day Low

0.1209

OPUSDT daily history

Date	Open	High	Low	Close	Change
24 Sept 2026	0.1230	0.1267	0.1227	0.1260	+2.48%
23 Sept 2026	0.1354	0.1413	0.1210	0.1230	-9.16%
22 Sept 2026	0.1280	0.1382	0.1278	0.1354	+5.78%

OPUSDT API access

OP / USDT prices are available over REST and WebSocket with no API key and no signup. Rate limit is 15,000 requests per minute per IP.

curl

curl "https://biquote.io/api/OPUSDT"

Python

import requests

r = requests.get("https://biquote.io/api/OPUSDT")
tick = r.json()
print(tick["mid"], tick["dayDiffPercent"])

JavaScript

const r = await fetch("https://biquote.io/api/OPUSDT");
const tick = await r.json();
console.log(tick.mid, tick.dayDiffPercent);

WebSocket

// SignalR hub — pushes every tick for OPUSDT
const conn = new signalR.HubConnectionBuilder()
  .withUrl("https://biquote.io/hubs/tick")
  .build();
conn.on("ReceiveTick", t => console.log(t.symbol, t.mid));
await conn.start();
await conn.invoke("Subscribe", "OPUSDT");

Also available for OPUSDT: daily candles, hourly candles · full API documentation

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