For AI agents: a documentation index is available at the root level at /llms.txt. Append /llms.txt to any URL for a page-level index, or .md for the markdown version of any page.

OKX API Console

Skip to navigation

This page is for WebSocket.

WebSocket API Books L2 Tbt

Books L 2 Tbt

WSS

wss://ws.okx.com:8443/ws/v5/public

Handshake

URL	wss://ws.okx.com:8443/ws/v5/public
Method	GET
Status	101 Switching Protocols

Messages

Handshake

WSS

wss://ws.okx.com:8443/ws/v5/public

Send

publishobjectRequired

Receive

subscribeobjectRequired

Was this page helpful?

WebSocket API

Documentation
API Reference
WebSocket

©2026 OKX.COM. One Sansome Street, Suite 1400 PMB 6005, San Francisco, CA 94104.
NMLS #1767779

English/USD

More about OKX

About us Careers Contact us Terms of Service Privacy Notice Disclosures Whistleblower notice Law enforcement OKX appCookie preferences

Products

Buy crypto Convert Crypto calculator All cryptocurrencies TradingView

Services

API Historical market data CEX fee schedule Listing application

Support

Support center Channel verification Announcements

Buy crypto

Buy USDT Buy USDC Buy Bitcoin Buy Ethereum Buy Litecoin

Crypto calculator

BTC to USD ETH to USD USDT to USD

Trade

Bitcoin price Ethereum price

Trade on the go with OKX

Scan to download OKX app

Scan to download OKX app

Community