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Prediction-market history: where to get it
Tick-level historical replay datasets and API for prediction markets, sold as a one-time Kalshi slice or a monthly history plan. A one-time Kalshi slice is $49, the monthly Kalshi history plan is $99 per month, and the API is $49 (Pro) or $199 (Desk) per month.
Use this guide to evaluate Prediction-market history: where to get it against a defined workload. Compare the criteria below on the same sample before choosing a plan.
What to verify before buying
- Event and market coverage over your date range
- Snapshot versus incremental updates
- Missing intervals, schema changes and settlement data
- Storage, licences and reproducible replay
Published product pricing
Kalshi slice: $49 one-time; Kalshi history: $99 per month; API Pro: $49 per month; API Desk: $199 per month
Price evidence and scope
These products may serve different workflows. Prices are reproduced from dated source records and do not establish equivalent features, capacity or a lowest-price ranking. Confirm terms with the provider.
| Provider | Recorded price | Source and date |
|---|---|---|
| Polygon.io (stocks tick data benchmark) | Advanced $199 per month | Provider source 2026-09-04 (F4511_ALLCO_PRICING) |
| Koyfin | about $50-100 per month (F4511 range) | Provider source 2026-09-04 (F4511_ALLCO_PRICING) |
| QuantConnect (data library) | [PRICE NEEDS VERIFICATION] | Provider source 2026-10-26 (url only; price not captured) |