WebSocket API
Public WebSocket API for interacting with UDX as a member.
Version 2026-08-11
Servers
wss://api.uat.udx.underdogsports.comwss://api.underdogexchange.comSubscriptions
The subscribe, unsubscribe, and snapshot commands shared by every channel.
Market Data
Live public order book and trade subscriptions and recovery.
RFQs
Live request for quote and quote streams, and their creation.
- RECEIVECreate RFQs
/ws - SENDStream RFQs
/ws - RECEIVECreate Quotes
/ws - RECEIVEAccept Quotes
/ws - RECEIVEConfirm Quotes
/ws - RECEIVECancel Quotes
/ws - SENDStream Quotes
/ws
Market Lifecycle
Change-only notifications about published single-leg and multi-leg markets.
Orders
Private streams of the caller’s own order lifecycle and executions.