Polymarket Data Exporter — Prediction Market Prices, Volume & History

Extract structured prediction market data from Polymarket — the world's largest prediction market platform. Get real-time prices, trading volumes, liquidity, order books, and historical price charts for any market category. No API key required.

Polymarket data powers AI training, quantitative research, sports betting analysis, crypto market intelligence, and political forecasting. This Actor makes it accessible as structured JSON/CSV data.

Why scrape Polymarket data?

Prediction markets aggregate the wisdom of thousands of traders into real-time probabilities. Polymarket has processed billions in volume across sports, crypto, politics, AI, science, and entertainment markets.

• Train AI models on real-world probability calibration data
• Research market efficiency across thousands of event contracts
• Track sentiment on crypto assets, political events, and tech milestones
• Build dashboards showing real-time prediction market odds
• Feed quantitative models with price history and volume data
• Monitor competitor intelligence in the prediction market space

What you can extract

Data Field	Description
Market question	The event being predicted (e.g. "Will BTC reach $100k by Dec 2025?")
Yes / No prices	Current probability as a decimal (0.00-1.00) and percentage
Trading volume	Total USDC volume traded
Liquidity	Available depth in the order book
End date	When the market resolves
Price history	Historical price chart (hourly snapshots, 30+ data points)
Order book	Current bids and asks
Condition ID	Internal identifier for cross-referencing
CLOB token IDs	Token identifiers for programmatic access
Tags and categories	Sports, crypto, politics, AI, etc.

Input options

Input	Type	Default	Description
Query Type	Select	By Category	Search method: category, keyword, specific markets, or trending
Category	Select	sports	Market category (sports, crypto, politics, AI, science, etc.)
Keyword	Text	—	Search for markets by keyword (used with "By Keyword" mode)
Market Slugs	Text	—	Comma-separated specific market slugs (used with "By Market IDs" mode)
Max Results	Integer	25	Maximum markets to return (1–500)
Include Price History	Boolean	false	Fetch 30+ hourly price history points per market
Include Order Book	Boolean	false	Fetch current bids and asks per market
Min Liquidity	Number	0	Only return markets above this volume threshold

Quick start

1. Select a query type (start with "Trending Markets — All Categories")
2. Set max results to 25 to test
3. Run the Actor
4. Download the results as JSON, CSV, or Excel

The output contains every active market matching your criteria with current prices, volumes, and links to Polymarket.

Example output

[
  {
    "id": "123456",
    "slug": "will-bitcoin-reach-100k",
    "question": "Will Bitcoin reach $100,000 by December 2025?",
    "yesPrice": 0.32,
    "noPrice": 0.68,
    "yesPercent": 32.0,
    "noPercent": 68.0,
    "volume": 2450000,
    "volumeFormatted": "$2,450,000",
    "liquidity": 1800000,
    "conditionId": "0xabc123...",
    "endDate": "2025-12-31T23:59:00Z",
    "closed": false,
    "tags": ["crypto", "bitcoin"],
    "url": "https://polymarket.com/event/will-bitcoin-reach-100k"
  }
]

Use cases

AI training data

Prediction market prices are gold-standard probability labels. Train models to calibrate confidence, predict outcomes, or detect market inefficiencies. The structured output is ready for pandas, PyTorch, or your ML pipeline.

Sports betting intelligence

Polymarket sports markets often diverge from sportsbook lines. Extract all MLB, NFL, NBA, or soccer markets and compare against traditional odds. Find pricing gaps and mispriced outcomes.

Crypto market signals

Track sentiment on Bitcoin, Ethereum, and altcoin price targets. Monitor regulatory prediction markets as leading indicators for crypto policy changes.

Political forecasting

Real-time probabilities on elections, policy changes, and geopolitical events. The same data hedge funds and research desks use — now accessible via API.

Research and analysis

Download complete market snapshots for academic research, thesis validation, or public policy analysis. Price history enables backtesting and time-series analysis.

Pricing

• Polymarket API access: Polymarket's public API is free and requires no authentication
• Apify platform costs: Standard compute unit pricing applies (typically $0.02–0.10 per run depending on results count)
• Pay-per-event: Charged per market queried at $0.005/market (primary event)

How it works

1. You configure the search criteria (category, keyword, specific market IDs, or trending)
2. The Actor queries Polymarket's public Gamma and CLOB APIs
3. Data is normalized into a consistent schema
4. Results are pushed to the Apify dataset for download
5. Optional: price history and order book data enrich the output

No authentication, no wallet, no trading required. Read-only access to the full Polymarket data layer.

Tips for best results

• Start with Trending — All Categories to see the most active markets
• Use By Keyword for specific topics (e.g. "Bitcoin", "World Cup", "Election")
• Enable Price History for time-series analysis (extra charge applies)
• Set Min Liquidity to $100,000+ to filter out thin markets
• For bulk extraction, run multiple queries by category and merge the datasets
• The data is in USDC — all volumes and prices are in US Dollar-pegged stablecoin terms

Legal

This Actor extracts publicly available data from Polymarket's public API. It does not interact with user wallets, execute trades, or access authenticated endpoints. Polymarket data is publicly accessible for research and analysis purposes. For commercial use, consult Polymarket's terms of service.

Support

For questions, bug reports, or feature requests, reach out via the Apify Discord.