# Kingsets

> Bulk historical Kalshi and Polymarket prediction market datasets. No API required. Download clean CSV files or query on BigQuery. No sign-up needed. Updated daily by 03:00 UTC. Free during beta.

## What Kingsets provides

Kingsets is a historical data product, not a live data feed. It removes the need to make thousands of API requests to Kalshi or Polymarket by providing pre-built, daily-updated bulk datasets ready for download or SQL querying.

- Daily CSV downloads of series, events, markets, and trades for both Kalshi and Polymarket
- Google BigQuery access to the same data (Project: pmdsproject, Dataset: pmdsbeta)
- Last 30 days of data available during beta

## File manifest

The complete list of available CSV files is at: https://beta.kingsets.com/manifest.json
This JSON includes every file path and updated timestamp. Fetch it to discover all downloads programmatically.

## Data structure

Both platforms use a three-tier hierarchy: Series → Events → Markets → Trades.

Kalshi join keys: SERIES_TICKER, EVENT_TICKER, MARKET_TICKER
Polymarket join keys: SERIES_ID, EVENT_ID, MARKET_ID

Polymarket trades are called "block trades" because they are ingested from the Polygon blockchain. Timestamps (BLOCK_DT) reflect on-chain finalization, typically a few seconds after off-chain matching.

## BigQuery

- Project: pmdsproject
- Dataset: pmdsbeta
- Tables: kalshi_series, kalshi_events, kalshi_markets, kalshi_trades, polymarket_series, polymarket_events, polymarket_markets, polymarket_block_trades

## Links

- Website: https://kingsets.com
- File manifest: https://beta.kingsets.com/manifest.json
- X: https://x.com/KingsetsData
- Telegram: https://t.me/kingsets