OKX API3 perpetual
API3-USDT-SWAP
As of 2026-09-09 13:54 UTC, API3-USDT-SWAP on OKX has a collected rate of +0.0050% over 4h, or +10.95% simple annualised; its collected settlement interval is 4h, with up to 10x leverage. Aster has a lower rate for longs at +10.95%.
Maintenance margin ladder
No deduction · An isolated-margin estimate for linear contracts; excludes closing fees, accrued funding, auto-added margin and other positions.
| Tier | Range | Maintenance rate | Max leverage | Deduction |
|---|---|---|---|---|
| 1 | 0 – 15000 base | 5.0000% | 10.00x | — |
| 2 | 15001 – 30000 base | 5.5000% | 9.52x | — |
| 3 | 30001 – 45000 base | 6.0000% | 9.09x | — |
| 4 | 45001 – 60000 base | 6.5000% | 8.69x | — |
| 5 | 60001 – 75000 base | 7.0000% | 8.33x | — |
| 6 | 75001 – 90000 base | 7.5000% | 8.00x | — |
| 7 | 90001 – 105000 base | 8.0000% | 7.69x | — |
| 8 | 105001 – 120000 base | 8.5000% | 7.40x | — |
| 9 | 120001 – 135000 base | 9.0000% | 7.14x | — |
| 10 | 135001 – 150000 base | 9.5000% | 6.89x | — |
| 11 | 150001 – 165000 base | 10.0000% | 6.66x | — |
| 12 | 165001 – 180000 base | 10.5000% | 6.45x | — |
| 13 | 180001 – 195000 base | 11.0000% | 6.25x | — |
| 14 | 195001 – 210000 base | 11.5000% | 6.06x | — |
| 15 | 210001 – 225000 base | 12.0000% | 5.88x | — |
| 16 | 225001 – 240000 base | 12.5000% | 5.71x | — |
| 17 | 240001 – 255000 base | 13.0000% | 5.55x | — |
| 18 | 255001 – 270000 base | 13.5000% | 5.40x | — |
| 19 | 270001 – 285000 base | 14.0000% | 5.26x | — |
| 20 | 285001 – 300000 base | 14.5000% | 5.12x | — |
| 21 | 300001 – 315000 base | 15.0000% | 5.00x | — |
| 22 | 315001 – 330000 base | 15.5000% | 4.87x | — |
| 23 | 330001 – 345000 base | 16.0000% | 4.76x | — |
| 24 | 345001 – 360000 base | 16.5000% | 4.65x | — |
| 25 | 360001 – 375000 base | 17.0000% | 4.54x | — |
| 26 | 375001 – 390000 base | 17.5000% | 4.44x | — |
| 27 | 390001 – 405000 base | 18.0000% | 4.34x | — |
| 28 | 405001 – 420000 base | 18.5000% | 4.25x | — |
| 29 | 420001 – 435000 base | 19.0000% | 4.16x | — |
| 30 | 435001 – 450000 base | 19.5000% | 4.08x | — |
| 31 | 450001 – 465000 base | 20.0000% | 4.00x | — |
| 32 | 465001 – 480000 base | 20.5000% | 3.92x | — |
| 33 | 480001 – 495000 base | 21.0000% | 3.84x | — |
| 34 | 495001 – 510000 base | 21.5000% | 3.77x | — |
| 35 | 510001 – 525000 base | 22.0000% | 3.70x | — |
| 36 | 525001 – 540000 base | 22.5000% | 3.63x | — |
| 37 | 540001 – 555000 base | 23.0000% | 3.57x | — |
| 38 | 555001 – 570000 base | 23.5000% | 3.50x | — |
| 39 | 570001 – 585000 base | 24.0000% | 3.44x | — |
| 40 | 585001 – 600000 base | 24.5000% | 3.38x | — |
| 41 | 600001 – 615000 base | 25.0000% | 3.33x | — |
| 42 | 615001 – 630000 base | 25.5000% | 3.27x | — |
| 43 | 630001 – 645000 base | 26.0000% | 3.22x | — |
| 44 | 645001 – 660000 base | 26.5000% | 3.17x | — |
| 45 | 660001 – 675000 base | 27.0000% | 3.12x | — |
| 46 | 675001 – 690000 base | 27.5000% | 3.07x | — |
| 47 | 690001 – 705000 base | 28.0000% | 3.03x | — |
| 48 | 705001 – 720000 base | 28.5000% | 2.98x | — |
| 49 | 720001 – 735000 base | 29.0000% | 2.94x | — |
| 50 | 735001 – 750000 base | 29.5000% | 2.89x | — |
| 51 | 750001 – 765000 base | 30.0000% | 2.85x | — |
| 52 | 765001 – 780000 base | 30.5000% | 2.81x | — |
| 53 | 780001 – 795000 base | 31.0000% | 2.77x | — |
| 54 | 795001 – 810000 base | 31.5000% | 2.73x | — |
| 55 | 810001 – 825000 base | 32.0000% | 2.70x | — |
| 56 | 825001 – 840000 base | 32.5000% | 2.66x | — |
| 57 | 840001 – 855000 base | 33.0000% | 2.63x | — |
| 58 | 855001 – 870000 base | 33.5000% | 2.59x | — |
| 59 | 870001 – 885000 base | 34.0000% | 2.56x | — |
| 60 | 885001 – 900000 base | 34.5000% | 2.53x | — |
| 61 | 900001 – 915000 base | 35.0000% | 2.50x | — |
| 62 | 915001 – 930000 base | 35.5000% | 2.46x | — |
| 63 | 930001 – 945000 base | 36.0000% | 2.43x | — |
| 64 | 945001 – 960000 base | 36.5000% | 2.40x | — |
| 65 | 960001 – 975000 base | 37.0000% | 2.38x | — |
| 66 | 975001 – 990000 base | 37.5000% | 2.35x | — |
| 67 | 990001 – 1005000 base | 38.0000% | 2.32x | — |
| 68 | 1005001 – 1020000 base | 38.5000% | 2.29x | — |
| 69 | 1020001 – 1035000 base | 39.0000% | 2.27x | — |
| 70 | 1035001 – 1050000 base | 39.5000% | 2.24x | — |
| 71 | 1050001 – 1065000 base | 40.0000% | 2.22x | — |
| 72 | 1065001 – 1080000 base | 40.5000% | 2.19x | — |
| 73 | 1080001 – 1095000 base | 41.0000% | 2.17x | — |
| 74 | 1095001 – 1110000 base | 41.5000% | 2.15x | — |
| 75 | 1110001 – 1125000 base | 42.0000% | 2.12x | — |
| 76 | 1125001 – 1140000 base | 42.5000% | 2.10x | — |
| 77 | 1140001 – 1155000 base | 43.0000% | 2.08x | — |
| 78 | 1155001 – 1170000 base | 43.5000% | 2.06x | — |
| 79 | 1170001 – 1185000 base | 44.0000% | 2.04x | — |
| 80 | 1185001 – 1200000 base | 44.5000% | 2.02x | — |
| 81 | 1200001 – 1215000 base | 45.0000% | 2.00x | — |
Contract specification
Quote currency: USDT · Settlement currency: USDT · Settlement interval: 4h. Lot size uses the venue’s original order unit; the calculator takes base-asset quantity.
The same asset elsewhere
| Venue | Contract | Rate period | Annualised |
|---|---|---|---|
| Aster | API3USDT | 4h | +10.95% |
| Binance | API3USDT | 4h | +10.95% |
| Bitget | API3USDT | 4h | +10.95% |
| Bybit | API3USDT | 4h | +10.95% |
| Gate | API3_USDT | 8h | +10.95% |
| OKX this page | API3-USDT-SWAP | 4h | +10.95% |
Common questions
What is the OKX API3 funding rate?
The latest collected OKX API3 funding rate is +0.0050% over a 4h rate period, or +10.95% simple annualised. That period is used for conversion and may differ from the settlement interval. Positive means longs pay shorts; negative reverses this.
How often is funding charged on OKX API3?
The collected settlement interval is 4h, normally 6 times a day. Venues can change it; confirm the next settlement time on the contract page.
What is the maximum leverage on OKX API3?
The collected leverage cap for OKX API3 is 10x, with 81 margin tiers shown. Actual leverage also depends on position size, account settings and venue rules.
What is the maintenance margin rate on OKX API3?
The first tier requires 5.0000%, and there are 81 tiers in all — a larger position requires more. This venue applies no deduction: maintenance margin = notional × the rate of the tier the position falls in.
Which venue has the lowest API3 funding cost for longs?
For a long position, Aster currently has the lowest rate at +10.95% annualised; this page's OKX is at +10.95%. Negative funding pays longs. Trading costs are excluded, and the cash-flow direction reverses for shorts.
Observation time and verification
This contract’s funding was observed at 2026-09-09 13:54 UTC; an unsettled quote may still change. A dash denotes missing usable data, not zero. OKX official data source · Funding methodology