Show pageOld revisionsBacklinksBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. <note warning>**Legacy — V1.** This page documents the ''/v1'' WebSocket API and is retained for existing integrations. New development should use [[developers:apiv2|V2]]. See [[developers:apiv2:migrating|Migrating from V1]].</note> ====== Market Data and Definitions ====== ===== Introduction ===== The Market Data API provides access to all tradable instruments and their associated definitions within the platform. This REST-based API allows you to explore available markets, retrieve instrument specifications, and access critical trading parameters. Please see our Instuments API documentation or Swagger with the links below. [[developers:markets|Instruments API]] [[https://api-sim.t4login.com/markets/swagger/index.html|Market Data API Swagger Documentation]] developers/websocket/markets.txt Last modified: 2026/09/08 00:38by chad