# Borrow API3: rates on every exchange

Annualised margin borrow rates for API3 at VIP 0, and whether borrowing it to collect negative funding pays after every cost.

Updated 2026-10-29 19:40 UTC · https://afterfees.xyz/borrow/API3

## API3 borrow rates by exchange

| Exchange | Now | 24 h avg | 7-day avg | Rate counted | Per-account limit | Platform remaining | Status |
|---|---|---|---|---|---|---|---|
| [Bitget](https://afterfees.xyz/venues/bitget) | 3.30% | 5.48% | 18.52% | 5.48% | $105K | $17.7K | Borrowable |
| [Gate](https://afterfees.xyz/venues/gate) | 13.43% | 13.89% | 50.54% | 13.89% * | $20K | not published | Borrowable |
| [OKX](https://afterfees.xyz/venues/okx) | 22.21% | 20.17% | 21.14% | 22.21% | $3.8K | not published | Borrowable |
| [Binance](https://afterfees.xyz/venues/binance) | 57.26% | 74.04% | 75.77% | 74.04% | $8.4K | not published | Borrowable |

_Annualised simply (hourly rate × 8,760). Rate counted = the higher of the current rate and the 24 h average, as in every calculation on AfterFees. * Gate: rate × the published VIP multiplier (inferred)._

## Reverse carry on API3: borrow and sell spot, long the perp

No reverse API3 carry nets a profit at this size right now.

_At $10,000 per side, held 7 days, after taker fees, order-book slippage and carry._

## API3 perps, most negative funding first

| Exchange | Contract | Rate | Every | Annualised |
|---|---|---|---|---|
| [Aster](https://afterfees.xyz/venues/aster) | API3USDT | -0.0099% | 4 h | −21.6% |
| [KuCoin](https://afterfees.xyz/venues/kucoin) | API3USDTM | -0.0087% | 4 h | −19.1% |
| [BloFin](https://afterfees.xyz/venues/blofin) | API3-USDT | -0.0004% | 4 h | −0.9% |
| [BingX](https://afterfees.xyz/venues/bingx) | API3-USDT | 0.0005% | 4 h | +1.1% |
| [MEXC](https://afterfees.xyz/venues/mexc) | API3_USDT | 0.0015% | 4 h | +3.3% |
| [OKX](https://afterfees.xyz/venues/okx) | API3-USDT-SWAP | 0.0018% | 4 h | +3.9% |
| [Binance](https://afterfees.xyz/venues/binance) | API3USDT | 0.0018% | 4 h | +4.0% |
| [Bitget](https://afterfees.xyz/venues/bitget) | API3USDT | 0.0050% | 4 h | +10.9% |

## Coins

|   |   |
|---|---|
| Funding rates and every arbitrage on this coin | [API3](https://afterfees.xyz/coin/API3) |

## Questions

**Where is it cheapest to borrow API3?**

Bitget, at 5.48% a year at the rate we count (the higher of the current rate and the 24 h average), among 4 exchanges that lend API3.

**Can I earn negative funding on API3 by borrowing it?**

Not right now: no reverse API3 carry covers its borrow interest, fees and slippage at $10,000 for 7 days.

_The method behind every number on AfterFees is published; Pro opens each figure into its line-by-line calculation. Estimates from current data, not investment advice. We never hold funds or trade for you._