API v1·Up-or-Down markets, every tick

The data layer for Polymarket crypto markets.

Tick-by-tick order books, trades, and resolved Up-or-Down markets for BTC and ETH — captured at sub-150ms intervals across three timeframes — 5m · 15m · 4h — with 100+ days of history joined to Binance spot. One REST API. Per-market Parquet downloads plus Pro whole-day ZIP bundles. SDK coming soon.

Get started — freeSee pricing
Mode
demo.py
SDK · Coming soon
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from polyreplay import PolyReplay
 
polyreplay = PolyReplay(mode='demo')
 
# paper-trade against live order books
@polyreplay.on_tick('BTC', timeframe='4h')
def strategy(market):
    if market.price > 0.80:
        market.buy(shares=100)
73,911
markets indexed
74,508
parquet files
289 GB
historical data
100
days covered
What you can build

From one API call to a full backtester.

Resolved markets, L25 order books, trades, and Binance spot prices — ready for whatever you want to ship.

win-rate 58.2%
Backtesting

Backtest Up-or-Down strategies

Resolved 5m / 15m / 4h markets across BTC and ETH. Run a strategy, get win-rate and PnL.

Run a backtest
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Order book

Replay L25 book snapshots

Top-of-book quotes and 25-level depth snapshots, per market, per outcome — every tick, precise timestamps.

Read the book API
poly · BTC 4hbinance spot
Cross-market

Prediction + Binance spot overlay

Each Up-or-Down market joined tick-by-tick to Binance spot quotes — attribute moves to the underlying, build correlation signals.

See the overlay
BTC·5mbtc-updown-5m-1748487600.parquet412 MB
BTC·15mbtc-updown-15m-1748485800.parquet164 MB
ETH·5meth-updown-5m-1748487600.parquet208 MB
ETH·4heth-updown-4h-1748476800.parquet94 MB
Bulk export

Stream Parquet to your warehouse

Filter by asset, timeframe, and tier, then pull signed URLs straight from R2. Pro: unlimited downloads (no 24h cap).

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