Free sample
One hour of the real thing: the Polymarket market plus every exchange file attached to the same coin, on one clock. Same format, same naming, same manifest as a paid order — an hour of it instead of a day. Both products have one, over the same hour: the capture as it arrived, and the 1-second aggregates built from it.
Raw
The full Polymarket feed exactly as the collector received it, stored as parquet: one row per message, with its microsecond receive timestamp. A day arrives as the Polymarket market plus the exchange files for the same coin, all on one clock.
Every column, and a preview of these files as a table →
| File | Source | Day | Size | |
|---|---|---|---|---|
| polymarket.btc.5m_20260807T1100.v4.parquet | polymarket | 2026-08-07 | 28.4 MB | download |
| binance.btc_20260807T1100.v4.parquet | binance | 2026-08-07 | 39.4 MB | download |
| bybit.btc_20260807T1100.v4.parquet | bybit | 2026-08-07 | 18.4 MB | download |
| chainlink.btc_20260807T1100.v4.parquet | chainlink | 2026-08-07 | 282 KB | download |
| coinbase.btc_20260807T1100.v4.parquet | coinbase | 2026-08-07 | 661 KB | download |
| okx.btc_20260807T1100.v4.parquet | okx | 2026-08-07 | 15.6 MB | download |
Aggregates
The raw parquet folded down to one row per second: open, high, low and close of the mid price and of the trades, volume, the best bid and ask and the top ten levels of the book on each side. Built from the raw files of the same day, and every file records the sha256 of the one it came from.
Every column, and a preview of these files as a table →
| File | Source | Day | Size | |
|---|---|---|---|---|
| polymarket.btc.5m_20260807T1100.v4.1s.parquet | polymarket | 2026-08-07 | 1.5 MB | download |
| binance.btc_20260807T1100.v4.1s.parquet | binance | 2026-08-07 | 1.6 MB | download |
| bybit.btc_20260807T1100.v4.1s.parquet | bybit | 2026-08-07 | 1.5 MB | download |
| chainlink.btc_20260807T1100.v4.1s.parquet | chainlink | 2026-08-07 | 162 KB | download |
| coinbase.btc_20260807T1100.v4.1s.parquet | coinbase | 2026-08-07 | 273 KB | download |
| okx.btc_20260807T1100.v4.1s.parquet | okx | 2026-08-07 | 1.6 MB | download |
Or take the lot in one command
curl -fsSL https://keydata.shop/client/fetch-dataset.sh -o fetch-dataset.sh bash fetch-dataset.sh https://keydata.shop/samples/manifest.json ./sample
Exactly the command a paid order gives you, pointed at the sample manifest.