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The Event Contracts WebSocket API provides public market data and authenticated account updates.

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Connection

Use one connection for the channels of the selected product. Prediction Markets uses ec.*; Event Contracts uses ec.*.

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Channel groups

  • Public channels: ec.trades, ec.depth, ec.bbo, ec.status, ec.cpi, ec.candlestick, and ec.oc_price
  • Private channels: ec.orders, ec.usertrades, ec.positions, and ec.settlements
Public channels do not require authentication. Private channels require an API Key signature. See WebSocket Protocol, Public Channels, and Private Channels.