Adjacent
Market indices
Prediction-market indices and reference rates.
Oddpool Alternatives (2026)
Compare the top 5 platforms similar to Oddpool. Match on features, US legality, and crypto support to find the right fit for your trading style.
Ranked by shared features with Oddpool. Last updated November 2026.
Betfair Exchange API & Data
Developer resources
Betfair exchange APIs and historical data.
Billy Bets
Research only
Sports odds research across prediction markets.
Bitquery Prediction Market API
API documentation
Onchain market data API documentation.
CCXT Prediction Markets
Developer library
A shared API for prediction-market data and trading.
About Oddpool
Oddpool 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.
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