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latestOpenAPI 3.0.02026-08-181824201.4 MB

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Market Data
Public

Retrieves the contract size (also known as contract multiplier) for a given instrument. The contract size is the value of one contract, expressed in the same unit as the order amount: USD for inverse (reversed) futures and perpetuals, and the base currency coin for options, spots, and linear futures and perpetuals.

This value is essential for calculating position values, margin requirements, and P&L calculations. Different instruments may have different contract sizes.

Try in API console

get/public/get_contract_size

Query parameters

instrument_namestring required

Unique instrument identifier

Example:BTC-PERPETUAL

Instrument name

Response

Success response

jsonrpc'2.0' required

The JSON-RPC version (2.0)

idinteger

The id that was sent in the request

Example response

{
  "result": {
    "contract_size": 10
  }
}