Cross-Exchange Arbitrage

Cross-exchange arbitrage exploits funding rate differentials for the same asset across two exchanges. By going long on the exchange paying you and short on the exchange charging you, you capture the net rate as profit. This endpoint scans 10 exchanges, pairs the best long/short combination per asset, and returns opportunities sorted by APR.

GET/v1/arbitrage/cross-exchange

List cross-exchange opportunities

Returns an array of cross-exchange arbitrage opportunities ranked by annualized return. Only assets listed on at least 2 of the selected exchanges are included. Stale rates older than 6 hours are excluded.

Query parameters

Name
exchanges
Type
string
Description
Comma-separated list of exchanges to include. Supported values: Binance, OKX, Bybit, Bitget, Gate.io, KuCoin, CoinEx, BingX, MEXC, HTX. Omit to include all 10 exchanges.
Name
minOiUsd
Type
number
Description
Optional liquidity floor in USD. When set, only pairs whose smaller-leg open interest meets this threshold are returned. Omit for no filter.

Request

GET

/v1/arbitrage/cross-exchange

curl -G https://www.sharpe.ai/api/v1/arbitrage/cross-exchange \
  -H "Authorization: Bearer sk_live_your_key_here" \
  -d exchanges=Binance,OKX,Bybit

Response

{
  "data": [
    {
      "symbol": "DOGE",
      "longExchange": "Gate.io",
      "shortExchange": "Binance",
      "longRate": -0.000250,
      "shortRate": 0.000350,
      "netFundingRate": 0.000075,
      "apr": 0.657,
      "netApr": null,
      "spreadRate": 0,
      "oiLong": 0,
      "oiShort": 0,
      "nextSettlement": "2026-03-28T08:00:00Z",
      "intervalHours": 1
    },
    {
      "symbol": "ETH",
      "longExchange": "Bybit",
      "shortExchange": "OKX",
      "longRate": -0.000050,
      "shortRate": 0.000200,
      "netFundingRate": 0.00003125,
      "apr": 0.27375,
      "netApr": null,
      "spreadRate": 0,
      "oiLong": 0,
      "oiShort": 0,
      "nextSettlement": "2026-03-28T08:00:00Z",
      "intervalHours": 1
    }
  ],
  "meta": {
    "request_id": "req_def456ghi789jklm",
    "timestamp": "2026-03-28T07:45:00Z",
    "elapsed_ms": 12
  }
}

Response fields

Each object in the data array represents the best long/short exchange pair for a single asset.

Name
symbol
Type
string
Description
The base asset ticker (e.g., BTC, ETH, DOGE).
Name
longExchange
Type
string
Description
The exchange where you open the long position (receiving funding or paying the least).
Name
shortExchange
Type
string
Description
The exchange where you open the short position (receiving the most funding).
Name
longRate
Type
number
Description
Current funding rate on the long exchange as a decimal.
Name
shortRate
Type
number
Description
Current funding rate on the short exchange as a decimal.
Name
netFundingRate
Type
number
Description
The net funding rate you capture, normalized to a per-hour decimal. Each leg's raw rate is divided by its own funding interval before subtracting, so pairs with different intervals (1h/4h/8h) compare correctly.
Name
apr
Type
number
Description
Gross annualized funding return as a decimal (e.g., 0.16 = 16%, 26.82 = 2682%). Computed as netFundingRate × 8760 (per-hour net rate × hours per year). Gross of trading fees and the inter-exchange price spread — see netApr.
Name
netApr
Type
number
Description
apr net of the one-time inter-exchange price spread, as a decimal. null when live ticker prices were unavailable for the pair.
Name
spreadRate
Type
number
Description
Signed inter-exchange price spread as a decimal ((longPrice − shortPrice) / mid). Best-effort from live tickers; 0 when prices were unavailable.
Name
oiLong
Type
number
Description
Open interest in USD on the long exchange. Best-effort from live tickers; 0 when unavailable.
Name
oiShort
Type
number
Description
Open interest in USD on the short exchange. Best-effort from live tickers; 0 when unavailable.
Name
nextSettlement
Type
string
Description
ISO 8601 timestamp of the next funding settlement.
Name
intervalHours
Type
number
Description
Interval basis for netFundingRate. Always 1, because net rates are normalized to per-hour. longRate and shortRate remain in their exchanges' native per-interval terms.

Single opportunity

{
  "symbol": "BTC",
  "longExchange": "KuCoin",
  "shortExchange": "Binance",
  "longRate": -0.000030,
  "shortRate": 0.000120,
  "netFundingRate": 0.00001875,
  "apr": 0.16425,
  "netApr": 0.16385,
  "spreadRate": 0.0004,
  "oiLong": 4200000,
  "oiShort": 9800000,
  "nextSettlement": "2026-03-28T16:00:00Z",
  "intervalHours": 1
}

Read the error reference