Fired when a new prediction market is created on Polymarket. Filterable by tags and event_slugs.
Payload delivered when a new prediction market is detected on-chain and enriched with Gamma API metadata
Condition ID (0x-prefixed hex, lowercase)
Market slug
List of market outcomes with their position IDs
Full market question text
Market description
Market tags
Whether this is a neg-risk market
Parent event slug
Parent event ID
Parent event title
Series slug (for recurring markets)
Short display title
Market category (e.g. "Sports", "Politics")
Cover image URL
Webhook delivery acknowledged