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Show HN: Prediction Hunt API – A unified layer for Polymarket, Kalshi, and more

https://www.predictionhunt.com/api/docs

I’m launching the Prediction Hunt API because I got tired of managing five different WebSocket connections and manually mapping event IDs across fragmented markets. It’s designed to be a unified infra layer for prediction markets, solving the "event matching" problem so you don't have to guess if a Polymarket contract and a Kalshi trade represent the same real-world outcome.

Here’s our feature offering:

-Real-Time Data with Event Matching: We make it trivial for you to pull real-time prices from 5 different prediction markets (and counting)

-Live Orderbook Proxy: We’ve wrapped our internal fetchers into a unified orderbook endpoint. It proxies the full bid/ask ladder in real-time from the source platforms.

We offer a generous free API tier (no expiration date) so you can see how much easier it is to query prediction markets with a single, unified API.

I’m aiming for this to be the best, most robust prediction market unified API out there - an alternative to Dome (now that it's been acquired). So please, let us know what you think and what features you'd want to see next!

( 2 comments | 2 points | on HN )
Re:Show HN: Prediction Hunt API – A unified layer for Polyma... by popalchemist on Monday April 06, 2026 @01:27AM (#47657290)
Yay! Immorality at scale!

Fuck this.

Re:Show HN: Prediction Hunt API – A unified layer for Polyma... by edge_trader_41 on Thursday April 09, 2026 @12:40AM (#47699335)
Unified prediction market APIs are great for data aggregation but the execution side is where it gets interesting. Most of these services only give you normalized prices, not actual orderbook depth. For cross-venue trading you need bid/ask at each price level to know if an apparent edge survives execution. Interesting that more of these are popping up though.