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Supported Platforms

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Polymarket

The largest prediction market by volume. Operates on Polygon (Ethereum L2) with on-chain settlement.
  • Market ID prefix: poly_
  • Data sources: Gamma API (market metadata), CLOB API (orderbooks, price history), WebSocket (real-time trades)
  • Specialties: Crypto-native, high liquidity, event-based markets

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Kalshi

CFTC-regulated US prediction market. Centralized exchange with USD settlement.
  • Market ID prefix: kal_
  • Data sources: REST API (markets, trades, candlesticks), WebSocket (requires auth)
  • Specialties: Regulated, US-focused, native OHLCV candles

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Limitless (Coming Soon)

Decentralized prediction market platform. Integration planned for a future release.

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Platform Filtering

All list endpoints support a platform filter: