Mark Price

Type: NONE

Weight: 1 with symbol, 10 without

GET /fapi/v1/premiumIndex

Mark price, index price and current funding rate. Public endpoint: no X-MBX-APIKEY, timestamp or signature required.

Request

GET /fapi/v1/premiumIndex?symbol=BTCUSDT

Query params

Name	Type	Required	Notes
symbol	string	no	Omit to get an array for every symbol.

Response — 200 (object with symbol, array without)

{
  "symbol": "BTCUSDT",
  "markPrice": "60050.50",
  "indexPrice": "60048.00",
  "estimatedSettlePrice": "60050.50",
  "lastFundingRate": "0.0001",
  "nextFundingTime": 1714291200000,
  "interestRate": "0.0001",
  "time": 1714261234567
}

Field	Notes
estimatedSettlePrice	Same value as markPrice — no separate estimate is computed.
lastFundingRate	The clamped funding rate for the current interval (see Funding Info for the cap/floor).
interestRate	The market's hourly borrowing-fee rate, not Binance's interest-rate approximation.

Errors

HTTP	code	msg
400	-1121	Invalid symbol.