Oddpool
Listed onOddpool is a prediction-market data API that normalizes markets, historical order books, trades and live probability streams across venues such as Kalshi and Polymarket, with a free tier (1,000 requests/month), Pro $30/month and Premium $100/month. Oddpool was acquired by Kalshi in September 2026.
- Categories
- Dev Tool
- Features
- Cross-venue data normalizationHistorical trades and order booksWebSocket data access
Details
DOCUMENTATION CHECKED · 2026-09-29
Who Oddpool is for
Developers who need consistent data across Kalshi and Polymarket.
- Supported venues
- polymarket, kalshi (international; US support not implied)
- Interface
- api
- Pricing and access
- Advertised Free tier: 1,000 requests/month. Pro $30/month and Premium $100/month; institutional access is quoted separately.
Limitations to consider
- The public site announces that Oddpool is joining Kalshi; confirm current cross-venue coverage and terms.
- Dataset history, streaming access and retention depend on the plan.
- Normalized schemas do not make contracts legally or economically equivalent.
Evidence
Based on public product information. This is not a paid-product test, latency benchmark or performance rating. How we select and check tools.
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