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Event: event_volume_milestone
Endpoint: wss://api.struct.to/ws/alerts
Cost: 0.2 credits per event
Get notified when an event’s aggregated volume crosses a USD milestone. You must specify at least one timeframe to subscribe.

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Filters

FilterTypeRequiredDescription
timeframesstring[]YesTimeframe windows: 1m, 5m, 15m, 30m, 1h, 4h, 6h, 1d, 24h, 7d, 30d (max 500)
event_slugsstring[]NoRestrict to specific events (max 500)
milestone_amountsinteger[]NoUSD milestone amounts to watch (max 500)
exclude_shortterm_marketsbooleanNoExclude short-term markets from results

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Subscribe

{
  "op": "subscribe",
  "event": "event_volume_milestone",
  "timeframes": ["1h", "24h"],
  "milestone_amounts": [50000, 100000]
}

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Response

{
  "event": "event_volume_milestone",
  "timestamp": 1775913505260,
  "data": {
    "event_slug": "us-presidential-election-2028",
    "timeframe": "24h",
    "milestone_usd": 100000,
    "current_volume_usd": 103450.60,
    "fees": 1034.50,
    "txns": 287
  }
}
Last modified on April 13, 2026