Skip to main content
Dot Prediction is two things in one API: a normalized view of every major prediction market, and a runtime for agents that read, write, and trade against it. One key. One schema. Three venues today — more on the roadmap.

​
What you get

  • Markets — list, search, filter across Kalshi, Polymarket, and Limitless.
  • Orderbooks — real-time bid/ask depth over REST or websocket.
  • History — OHLC candles and the full trade tape at configurable intervals.
  • Analytics — trending, categories, platform stats, whales, top traders.
  • Portfolio — positions, PnL, trades, and account activity per venue.
  • Orders — place, list, and cancel on behalf of a user with their vaulted credentials.

​
Venues

PlatformMarketsOrderbookTradesHistory
Kalshi✓✓✓✓
Polymarket✓✓✓✓
Limitless✓✓—✓
Manifold, Futuur, and PredictIt are on the roadmap — live coverage rolls out through Q3 and Q4 2026.

​
Start in three calls

curl https://api.dotprediction.io/v1/api/markets?provider=polymarket&limit=5 \
  -H "X-API-Key: $DP_API_KEY"

​
Get an API key

Head to dotprediction.com, sign up, and create a key from the dashboard. The Free tier gives you 1,000 requests per day — enough to build against. Dig in with the Quickstart or browse the API reference.