Polymarket & Kalshi Odds - Prediction Markets Data
Pricing
from $0.43 / 1,000 markets
Polymarket & Kalshi Odds - Prediction Markets Data
Prediction market odds from Polymarket and Kalshi: implied probabilities, bid/ask, 24h and 7d moves, volume, liquidity/open interest, close time, plus the same question matched across both venues with the spread. No key.
Pricing
from $0.43 / 1,000 markets
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Developer
Centor Prat
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6 days ago
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Security
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🎲 Polymarket & Kalshi Odds - Prediction Markets Data
Live prediction-market odds from Polymarket and Kalshi in one table. Search topics ("fed rate", "bitcoin",
"election") or list the most active markets. Per market: implied probability per outcome, best bid/ask, 24h and 7d
moves, 24h and total volume, liquidity (Polymarket) or open interest (Kalshi), close time and link. The same question
on both venues is paired and the probability spread reported, a starting point for spotting disagreement between venues.
Built for traders, researchers, newsrooms and AI agents that need event probabilities as data · public APIs, no key.
📥 Input
| Field | Meaning |
|---|---|
queries | Topics; empty = most active markets |
venues | polymarket, kalshi (default both) |
maxMarketsPerQuery | Per venue and topic |
minVolume24hUsd | Skip thin markets |
crossVenueMatches | Pair the same question across venues (free rows) |
💰 Pricing
market per market row. Cross-venue rows and empty searches are free.
🤖 API / agents
❓ FAQ
- Is this trading advice? No: market prices are crowd odds, not predictions we make. Data for research and automation.
- How are venues matched? By the overlap of the question wording; check
similaritybefore acting on a spread.
