BTC—ETH—SOL—XRP—BTC—ETH—SOL—XRP—NBA28 marketsFOMC3 marketsWeather45 marketsNBA28 marketsFOMC3 marketsWeather45 markets
Live Data Feed

Prediction Market
Orderbook Data

Continuous orderbook snapshots across prediction markets on Polymarket — crypto, sports, economics, and weather. Every bid, every ask — captured and queryable via API.

Depth ChartBTC-5m UP Token
Bids Asks
—Live Markets
—Snapshots Captured
100+Markets Tracked
8Categories
30+Cities Tracked
What We Track

Eight categories, hundreds of markets

Prediction markets across crypto, sports, economics, weather, and more — live and historical orderbook data.

16 markets

Crypto

BTC, ETH, SOL, XRP -- Up/Down markets every 5m to 1d

28 markets

Sports

NBA, NFL, EPL -- Game outcomes and season predictions

12 markets

Economics

Fed Decisions, Jobs Reports -- FOMC meetings and macro data

45 markets

Weather

30 cities daily -- Temperature, hurricanes, Arctic ice

Sample Data

Tick-level orderbook snapshots

Every snapshot includes full bid/ask depth, mid prices, spreads, and crypto spot price.

polymarket.snapshots_hf— rows
SideBidSizeAskSizeSpread
UP0.54001,2400.55001,1001.00%
UP0.53009800.56001,4503.00%
UP0.52001,5600.57008905.00%
UP0.51002,1000.58002,3007.00%
UP0.50001,8000.59001,7009.00%
UP0.49003,2000.60003,10011.00%
Schema14 columns
cryptoLowCardinality(String)BTC
timeframeLowCardinality(String)5m
token_sideEnum8('UP','DOWN')UP
timestampDateTime64(3)2026-03-03 17:20:03.157
crypto_priceFloat6487,432.50
best_bidFloat640.5400
best_askFloat640.5500
mid_priceFloat640.5450
spreadFloat640.0100
bidsArray(Tuple(F64,F64))[(0.54,1240),...]
asksArray(Tuple(F64,F64))[(0.55,1100),...]
Data Coverage

Comprehensive market coverage

Prediction markets across multiple categories, captured continuously with high-frequency precision.

8
Categories
CryptoSportsEconomicsWeather
100+
Active Markets
BTCETHSOLXRP+ sports, econ, weather
30+
Cities Tracked
Daily weather prediction markets
20 Hz
Capture Rate
Crypto 20 HzSports 2 HzEcon 1 Hz
Why This Data

Built for quantitative research

Orderbook-level prediction market data that doesn't exist anywhere else.

01

Millisecond-Resolution Timestamps

Every snapshot carries a DateTime64(3) timestamp. Reconstruct exact market state at any point. Compare price movements across assets at the sub-second level.

02

Full Orderbook Depth

Not just best bid/ask. Complete bid and ask arrays stored per snapshot. Study how liquidity stacks at each price level. Measure depth imbalance before market moves.

03

Cross-Category Coverage

Crypto, sports, economics, and weather markets. Study how prediction markets behave differently across categories, timeframes, and resolution periods.

04

Multi-Domain Probability Data

Every snapshot pairs the prediction market's orderbook with domain-specific context. Compare implied probability across crypto prices, game outcomes, economic indicators, and weather forecasts.

Research Applications
✓Spread analysis and market making simulation
✓Liquidity depth profiling across categories
✓Implied probability vs realized outcomes
✓Market microstructure and order flow analysis
✓Weather derivative research across 30 cities
✓Cross-category correlation studies
Get Started

Up and running in minutes

Three steps from signup to live data in your application.

1

Get Your API Key

Generate a free API key instantly. No account creation, no credit card. Just click and go.

2

Explore the API

Browse 11 endpoints with live examples. Test requests directly from the documentation.

3

Start Building

Integrate live orderbook data into your research pipeline, trading bot, or analytics platform.

fetch('/v1/markets/live', { headers: { 'X-API-Key': key } })