# Get Market Data

Get top of book market data

Endpoint: GET /trading/api/v3/MarketData
Version: 1.5.0
Security: api-key, nonce, timestamp, version, signature

## Query parameters:

  - `symbols` (array)
    Symbols to get market data for, example: 'BTC/CHF'

## Header parameters:

  - `customer-number` (string, required)
    Defines which customer the request is executed for. If you manage multiple customers, this is how you switch between them. Use the _Customer Management_ API endpoints to get the customer data. Example: 'BTCS-CUS-123456'

## Response 200 fields (application/json):

  - `marketDataList` (array,null)

  - `marketDataList.symbol` (string,null)

  - `marketDataList.bidPrice` (number)

  - `marketDataList.askPrice` (number)