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APIs › OKX Market Data › OKX Order Book

OKX Order Book

Aggregated order book for one instrument at a requested depth, with per-level size and order count.

GET /v1/market/orderbook $0.005 per call

Informational only. This endpoint produces analysis, not advice. Do not use it as the sole basis for a financial, security or engineering decision.

Specification

Endpoint
GET /v1/market/orderbook
Price
$0.005 per call · tier basic_data
Payment
x402 on X Layer (chain 196) · settled in USDG or USDT0 · schemes exact, aggr_deferred
Data source
OKX public market REST/WebSocket API
Timeout
15 seconds
Max request
16 KB
Version
1.0.0

Calling it

The first call returns a 402 with the payment challenge. Retry with a signed authorisation in the X-PAYMENT header — see the payment guide for the exact shape. 

curl -i "https://api.dana-edu.pp.ua/v1/market/orderbook"

Response

No fixed example. This service returns live data from an upstream source. A stored example would be a snapshot presented as a current figure, so none is published.

Every response is wrapped in the same envelope: data plus warnings, sources, confidence, informational_only and a measured processing_ms. See the envelope reference.

Related endpoints

OKX Instrument Directory

List every tradable instrument on OKX for a given instrument type, with contract specifications, tick size, lot size and listing state.

GET $0.005

OKX Instrument Details

Full contract specification for a single OKX instrument, including tick size, contract multiplier, settlement currency and expiry.

GET $0.005

OKX Market Ticker

Latest traded price, best bid/ask, 24-hour open, high, low and volume for one OKX instrument.

GET $0.003

OKX Bulk Ticker Snapshot

Ticker snapshot for every instrument of a given type in one call, for cross-market scanning without per-symbol requests.

GET $0.01