# API3-USDT-SWAP on Okx — instrument statistics

> Machine-readable twin of https://cryptostruct.com/analyze/instrument/241340 (an interactive dashboard that needs JavaScript).
> This document: https://cryptostruct.com/analyze/instrument/241340.md · Source: CryptoStruct's own tick-by-tick recordings.

API3-USDT-SWAP is a perpetual instrument on Okx (API3/USDT). Master data, archive coverage and daily market statistics below.

## Instrument master data

| Field | Value |
| --- | --- |
| Instrument | API3-USDT-SWAP (id 241340) |
| Exchange | Okx (`okex`) |
| Class | perpetual · linear |
| Pair | API3/USDT |
| State | open |
| Tick size | 0.0001 |
| Lot size | 1 |
| Minimum order | 1 API3 |
| Minimum notional | — |
| Funding interval | 4 h |
| Listed | 2022-03-03 |

Exchange-published rules as synced on 2026-10-07; venues change them — check the venue before trading.

## Archive coverage

1,088 recorded UTC days from 2023-10-11 to 2026-10-06 — every trade, every order-book update at full depth and every quote of the venue's feed, one zstd-compressed JSON-lines file per day.

## Daily market statistics (last 30 recorded days)

Averages over these days: $3,219,660 turnover and 21,377 trades per day, quoted spread 6.24 bps, top-of-book depth $161, top-20 depth $21,503 (mid-side total notional over the top 20 levels).

| UTC day | Trades | Turnover USD | Avg spread bps | Top-of-book depth USD | Top-20 depth USD |
| --- | --- | --- | --- | --- | --- |
| 2026-10-06 | 236,236 | $52,638,119 | 5.04 | $371 | $32,077 |
| 2026-10-05 | 47,627 | $5,996,119 | 5.77 | $89 | $15,792 |
| 2026-10-04 | 7,085 | $562,592 | 7.23 | $98 | $12,393 |
| 2026-10-03 | 11,961 | $871,431 | 5.81 | $69 | $13,693 |
| 2026-10-02 | 8,672 | $553,975 | 7.14 | $111 | $16,297 |
| 2026-10-01 | 6,484 | $371,121 | 5.87 | $87 | $16,603 |
| 2026-09-30 | 10,644 | $874,020 | 7.78 | $122 | $16,936 |
| 2026-09-29 | 13,067 | $971,821 | 6.19 | $95 | $19,365 |
| 2026-09-28 | 9,678 | $755,023 | 7.64 | $140 | $18,259 |
| 2026-09-27 | 5,834 | $466,323 | 5.52 | $127 | $23,481 |
| 2026-09-26 | 14,865 | $696,903 | 7.09 | $173 | $22,359 |
| 2026-09-25 | 6,616 | $398,939 | 5.56 | $72 | $18,635 |
| 2026-09-24 | 6,565 | $533,948 | 7.54 | $126 | $18,425 |
| 2026-09-23 | 31,114 | $2,395,248 | 5.8 | $70 | $14,415 |
| 2026-09-22 | 6,519 | $593,401 | 7.37 | $125 | $19,360 |
| 2026-09-21 | 9,437 | $522,171 | 5.67 | $89 | $15,857 |
| 2026-09-20 | 8,046 | $797,460 | 7.14 | $207 | $24,446 |
| 2026-09-19 | 9,558 | $802,736 | 5.31 | $170 | $17,369 |
| 2026-09-18 | 6,960 | $1,016,010 | 5.61 | $415 | $27,320 |
| 2026-09-17 | 5,984 | $745,075 | 5.28 | $289 | $30,012 |
| 2026-09-16 | 8,861 | $645,112 | 5.27 | $141 | $25,987 |
| 2026-09-15 | 14,290 | $1,223,997 | 5.6 | $214 | $29,591 |
| 2026-09-14 | 56,302 | $6,122,756 | 6.13 | $253 | $27,304 |
| 2026-09-13 | 66,000 | $13,380,645 | 6.88 | $321 | $28,097 |
| 2026-09-12 | 7,068 | $631,054 | 6.32 | $106 | $17,220 |
| 2026-09-11 | 5,326 | $386,088 | 6.72 | $166 | $23,119 |
| 2026-09-10 | 6,452 | $431,172 | 6.74 | $161 | $23,419 |
| 2026-09-09 | 5,555 | $442,976 | 6.13 | $126 | $22,645 |
| 2026-09-08 | 4,377 | $379,961 | 5.41 | $153 | $27,224 |
| 2026-09-07 | 4,113 | $383,593 | 5.5 | $131 | $27,398 |

## Get the data

- Rolling 24 h of 1-minute statistics as CSV (free, no auth): https://cryptostruct.com/api/analyze/instrument-last-24h-minutes/241340?format=csv
- Full tick-by-tick day files, €1 per instrument-day, no subscription, no account: https://cryptostruct.com/shop?i=241340
- Free sample days: https://cryptostruct.com/download · MCP server for agents: https://cryptostruct.com/mcp