Margin Borrow Rates

The interest a venue charges to borrow a coin on spot margin, per coin and venue, from the endpoints each venue publishes without an account. It is the cost of the short spot leg of a reverse cash-and-carry (sell spot, long perp) and of a leveraged long's quote borrow.

GET/v1/arbitrage/borrow-rates

List borrow rates

One row per coin with every venue's quote, cheapest first. A venue that does not price a coin is absent from its row, never 0.

Venue	Rate read	Tier
Binance	margin fee page, `dailyInterestRate` (unofficial www endpoint)	VIP 0, cross margin
OKX	`/api/v5/public/interest-rate-loan-quota`, `basic[].rate` (daily)	basic
Bybit	`/v5/spot-margin-trade/data`, `hourlyBorrowRate`	No VIP
Gate.io	`/api/v4/unified/history_loan_rate`, latest hourly `rate`	unified account; the 100 enabled loan currencies with the most USDT spot volume

KuCoin, Bitget, MEXC, BingX, HTX and CoinEx publish no keyless borrow rate and are reported unsupported in venues.

Freshness: each venue is fetched on request and kept 5 minutes (the answer is stale after 10 minutes; as_of is the oldest venue answer served). After a failed refresh a venue's last good answer is served for up to 15 minutes with status stale, then the venue is failed and its coins drop out. A failed venue makes the answer degraded (never cached); every venue failing is a 503.

Query parameters

Name
coin
Type
string
Description
Optional borrowed asset, case-insensitive (BTC, USDT, PEPE).
Name
exchanges
Type
string
Description
Comma-separated venues: Binance, OKX, Bybit, Gate.io. Default: all.

Request

GET

/v1/arbitrage/borrow-rates

curl -G https://www.sharpe.ai/api/v1/arbitrage/borrow-rates \
  -H "Authorization: Bearer sk_live_your_key_here" \
  --data-urlencode "coin=BTC"

Response

{
  "data": {
    "rows": [
      {
        "coin": "BTC",
        "rates": [
          {
            "venue": "Binance",
            "hourlyRate": 0.00000049125,
            "annualRate": 0.00430335,
            "source": "binance.margin-vip-spec",
            "asOf": "2026-09-30T08:07:11.062Z"
          },
          {
            "venue": "Bybit",
            "hourlyRate": 0.00000049127,
            "annualRate": 0.0043035252,
            "source": "bybit.spot-margin-data",
            "asOf": "2026-09-30T08:07:11.020Z"
          },
          {
            "venue": "Gate.io",
            "hourlyRate": 0.00000057,
            "annualRate": 0.0049932,
            "source": "gate.unified-history-loan-rate",
            "asOf": "2026-09-30T08:00:00.000Z"
          },
          {
            "venue": "OKX",
            "hourlyRate": 0.00000058,
            "annualRate": 0.0050808,
            "source": "okx.interest-rate-loan-quota",
            "asOf": "2026-09-30T08:07:11.300Z"
          }
        ],
        "venueCount": 4,
        "lowestAnnualRate": 0.00430335,
        "lowestVenue": "Binance",
        "highestAnnualRate": 0.0050808,
        "highestVenue": "OKX"
      }
    ],
    "venues": [
      { "venue": "Binance", "status": "ok", "coins": 394, "fetchedAt": "2026-09-30T08:07:11.062Z", "reason": null },
      { "venue": "OKX", "status": "ok", "coins": 172, "fetchedAt": "2026-09-30T08:07:11.300Z", "reason": null },
      { "venue": "Bybit", "status": "ok", "coins": 260, "fetchedAt": "2026-09-30T08:07:11.071Z", "reason": null },
      { "venue": "Gate.io", "status": "ok", "coins": 100, "fetchedAt": "2026-09-30T08:07:17.458Z", "reason": null },
      { "venue": "KuCoin", "status": "unsupported", "coins": 0, "fetchedAt": null, "reason": "The public lending-market rate is a flat 0.0001 for every coin with no documented period; the borrow rate needs a key." }
    ]
  },
  "meta": {
    "request_id": "req_abc123def456ghij",
    "timestamp": "2026-09-30T08:07:18.000Z",
    "elapsed_ms": 6420
  }
}

Units

Every rate is a fraction. hourlyRate is interest per hour on the borrowed amount; annualRate = hourlyRate × 8,760, simple (not compounded). OKX and Binance publish a daily rate d: hourlyRate = d / 24, so annualRate = d × 365. Bybit and Gate.io publish an hourly rate. On 2026-09-30 the four venues priced BTC between 0.43% and 0.51% a year and USDT between 3.5% and 5.2%.

asOf is the venue's own stamp where it sends one (Bybit's server time, the hour Gate's rate applies to), else the time Sharpe fetched it (OKX, Binance). A "", missing or zero rate is treated as not priced.