book.{instrument_name}.{depth}

CHANNEL 
wss://stream.crypto.com/exchange/v1/market
book.{instrument_name}.{depth}

Order book (L2). Subscribe with channels e.g. ["book.BTCUSD-PERP.10"] or ["book.BTCUSD-PERP.50"]. Optional params: book_subscription_type (SNAPSHOT | SNAPSHOT_AND_UPDATE), book_update_frequency (10 | 100 | 500 ms).

Request

Body

required

id integerrequired

Request id

method stringrequired

Possible values: [subscribe]

params objectrequired

channels string[]required

e.g. ["book.BTCUSD-PERP.10"]

book_subscription_type BookSubscriptionType (string)

Possible values: [SNAPSHOT, SNAPSHOT_AND_UPDATE]

Book subscription type for order book channel.

book_update_frequency BookUpdateFrequency (string)

Possible values: [10, 100, 500]

Update frequency in ms; for book channel only.

nonce integerrequired

Current timestamp in milliseconds

WebSocket response

Schema

id int64
method string
code int32
result object
instrument_name string
subscription string
channel string
depth int32
data object[]
Array [
asks array[]
Ask levels (snapshot).
bids array[]
Bid levels (snapshot).
t int64
Timestamp (snapshot), ms, e.g. "1771761038000".
tt int64
Timestamp (snapshot), ms, e.g. "1771761038000".
u int64
Sequence (snapshot).
update object
Delta; has asks/bids.
pu int64
Previous sequence (delta).
]