IN THE FIELD GUIDE
Oddpool
oddpool.com
Oddpool provides real-time and historical prediction market data across Kalshi and Polymarket, including whale trades, arbitrage opportunities, and price spreads. It offers programmatic access via REST and WebSocket APIs, supporting institutional and self-serve users with normalized data feeds and extensive market analytics.
THE PRODUCT, BEYOND THE PITCH
Automatically researched · Not editorially reviewed · Sources checked Oct 10, 2026
A good fit for
Not confirmed yet.
Know the limitations
- Oddpool is no longer accepting new subscriptions; only existing subscriptions and free accounts continue as normal.
What you can do
- Developing automated trading bots that detect cross-venue arbitrage and alert users before opportunities close.
- Building notification systems such as Telegram alerts when price spreads widen beyond a threshold.
Features
- Real-time WebSocket feeds streaming orderbooks, trades, and probability distributions from Kalshi and Polymarket over a single connection.
- Whale trade tracking to monitor large trades across prediction markets and receive alerts when whales move.
- Arbitrage scanner to find cross-venue arbitrage opportunities and price spreads between Kalshi and Polymarket.
- Full-text market search with filtering by exchange, category, volume, and liquidity.
- Historical data APIs providing orderbook snapshots, top-of-book timeseries, and trade tapes for Kalshi and Polymarket markets.
Integrations
Not confirmed yet.
Platforms & data export
- Web-based platform with REST and WebSocket APIs for programmatic access.
THE COST FOR YOUR TEAM
Go beyond the starting price.
Published plan prices for your team size and usage. Results update as you type. Taxes, currency conversion and unlisted add-ons are excluded, and anything the source did not state is called out rather than guessed.
Cheapest fit for 1 person, all 1 tools
$0.00/month
$0.00 a year on these plans.
| Tool / plan | Monthly | Per year | What this assumes |
|---|---|---|---|
FreeCheapest fit Flat subscription | $0.00 | $0.00 | Automatically extracted from the linked pricing source. Seat allowances, usage limits, taxes and terms are not confirmed — check them with the provider. |
Pro Flat subscription | $30.00 | $360.00 | Automatically extracted from the linked pricing source. Seat allowances, usage limits, taxes and terms are not confirmed — check them with the provider. |
Premium Flat subscription | $100.00 | $1,200.00 | Automatically extracted from the linked pricing source. Seat allowances, usage limits, taxes and terms are not confirmed — check them with the provider. |
A practical workflow
- Start with a free API key to access a slice of normalized data including 750+ event dashboards and basic API usage.
- Use REST and WebSocket APIs to query real-time and historical market data programmatically.
- Upgrade to Pro or Premium plans for higher API rate limits, more WebSocket connections, and access to advanced features like arbitrage scanners and whale tracking.
Based on the sources below. Editorial review does not imply hands-on product testing.
Alternatives to explore
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