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Event: market_created
Cost: 0.1 credits per delivery
Fires when a new prediction market is detected on-chain and enriched with metadata. The full payload schema is in the auto-generated Market Created callback reference; this page documents the filters and matching behavior.

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When to use this

  • Auto-list newly created markets in your app the moment they appear.
  • Trigger curation or moderation workflows for markets matching specific tags.
  • Seed analytics or indexing pipelines as soon as a market is enriched.

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Subscription filters

Add these to the filters object when you create the subscription.
FilterTypeDescription
event_slugsstring[]Restrict to specific events by slug (max 500).
tagsstring[]Restrict to specific market tags (max 500).
exclude_shortterm_marketsbooleanExclude short-term Up/Down markets.

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Example

{
  "url": "https://your-server.com/webhooks",
  "event": "market_created",
  "filters": {
    "tags": ["politics", "crypto"],
    "exclude_shortterm_markets": true
  }
}
Last modified on June 3, 2026