Real-time Crypto OrderBook

General WSS information

• Crypto subscriptions are subscribed in the form of symbol@market (for example: BTC-USDT@dcex). Multiple crypto subscriptions are separated by / (for example: BTC-USDT@dcex/ETH-USDT@dcex/DOGE-USDT@dcex).

WebSocket Limits

• Each access IP is limited to a maximum of 1024 WebSocket connections.
• Each WebSocket connection has a maximum of 200 subscription combinations. If this limit is exceeded, the subscription will be truncated.

Subscribe to crypto orderbook

Subscribe to real-time crypto orderbook data streams. Crypto orderbook provide live current trading information that updates continuously 24/7.

Key Characteristics:

• Real-time updates: Data is pushed immediately when market conditions change
• Live pricing: Reflects current market prices and trading activity
• 24/7 trading: Continuous trading without market closure
• Continuous data: Updates occur throughout the day as trades happen

wss://{base_url}/ws/market/v1/orderbooks?symbols={streams}

Example

wss://{base_url}/ws/market/v1/orderbooks?symbols=BTC-USDT@dcex/ETH-USDT@dcex

Description

Code	Type	Description
symbol	STRING	Crypto symbol
market	STRING	Crypto market
ask	OBJECT ARRAY	Sell orders
bid	OBJECT ARRAY	Buy orders
time	STRING	Orderbook time

Description of the market order field.

Name	Type	Description
price	DECIMAL	Order price
volume	DECIMAL	Order volume

JSON Example

{
    "type": "orderbook",
    "data": {
        "market": "dcex",
        "symbol": "BTC-USDT",
        "time": "2025-09-25 10:10:23.394",
        "ask": [
            {
                "price": 113710,
                "volume": 1.77144
            },
            {
                "price": 113710.01,
                "volume": 0.00055
            },
            {
                "price": 113710.4,
                "volume": 0.00005
            },
            {
                "price": 113710.42,
                "volume": 0.0001
            },
            {
                "price": 113710.43,
                "volume": 0.02191
            },
            {
                "price": 113711.37,
                "volume": 0.00005
            },
            {
                "price": 113712,
                "volume": 0.00005
            },
            {
                "price": 113712.25,
                "volume": 0.00158
            },
            {
                "price": 113712.5,
                "volume": 0.00005
            },
            {
                "price": 113713.58,
                "volume": 0.00005
            },
            {
                "price": 113713.93,
                "volume": 0.0015
            },
            {
                "price": 113713.99,
                "volume": 0.0001
            },
            {
                "price": 113714,
                "volume": 0.0847
            },
            {
                "price": 113715.06,
                "volume": 0.01704
            },
            {
                "price": 113715.16,
                "volume": 0.00005
            },
            {
                "price": 113715.99,
                "volume": 0.0001
            },
            {
                "price": 113716,
                "volume": 0.08465
            },
            {
                "price": 113716.36,
                "volume": 0.00089
            },
            {
                "price": 113716.74,
                "volume": 0.00008
            },
            {
                "price": 113716.75,
                "volume": 0.00457
            }
        ],
        "bid": [
            {
                "price": 113709.99,
                "volume": 11.41471
            },
            {
                "price": 113709.93,
                "volume": 0.00008
            },
            {
                "price": 113709.92,
                "volume": 0.00008
            },
            {
                "price": 113709.85,
                "volume": 0.00204
            },
            {
                "price": 113709.84,
                "volume": 0.0081
            },
            {
                "price": 113709.6,
                "volume": 0.0023
            },
            {
                "price": 113708.04,
                "volume": 0.00025
            },
            {
                "price": 113708.03,
                "volume": 0.56385
            },
            {
                "price": 113708.02,
                "volume": 0.00593
            },
            {
                "price": 113708.01,
                "volume": 0.00015
            },
            {
                "price": 113708,
                "volume": 0.085
            },
            {
                "price": 113707.99,
                "volume": 0.65843
            },
            {
                "price": 113707.85,
                "volume": 0.00168
            },
            {
                "price": 113707.73,
                "volume": 0.00042
            },
            {
                "price": 113707.3,
                "volume": 0.0001
            },
            {
                "price": 113707.29,
                "volume": 0.31676
            },
            {
                "price": 113706.84,
                "volume": 0.00005
            },
            {
                "price": 113706.77,
                "volume": 0.00043
            },
            {
                "price": 113706,
                "volume": 0.0847
            },
            {
                "price": 113705.73,
                "volume": 0.00043
            }
        ]
    }
}