Polymarket Scraper API – Prediction Market Odds

Polymarket scraper for prediction market odds via the public Gamma API: question, outcome prices, volume, liquidity and end date. No login, no wallets, no private keys. Clean JSON for traders, researchers and AI agents.

What does it do?

• List or search Polymarket markets from the public Gamma API.
• Return question, slug, outcome prices, volume, liquidity, end date and closed flag.
• Optional activeOnly filter and maxItems cap.
• Stable URL to the market page on polymarket.com.

Use cases

• Trading research: pull Polymarket odds and volume into spreadsheets or dashboards.
• News / AEO: track prediction markets as signals for headlines.
• AI agents: feed market odds into LLM workflows via Apify API or MCP.
• Alerts: watch volume or price moves on named markets.

Input

Field	Description
query	Optional text filter on market question/slug. Example: election
activeOnly	If true, skip closed markets. Default true.
maxItems	Max markets to return. Example: 50

Example input:

{
  "query": "election",
  "activeOnly": true,
  "maxItems": 20
}

Output

Real output (sample from a prior run on 27 Oct 2026, Europe/Madrid):

[
  {
    "id": "559651",
    "question": "Xi Jinping out before 2027?",
    "slug": "xi-jinping-out-before-2027",
    "outcomePrices": "[\"0.0375\", \"0.9625\"]",
    "volume": 16199155.815931,
    "liquidity": 308702.73526,
    "endDate": "2027-01-01T04:59:00Z",
    "closed": false,
    "url": "https://polymarket.com/event/xi-jinping-out-before-2027"
  },
  {
    "id": "559652",
    "question": "Will Gavin Newsom win the 2028 Democratic presidential nomination?",
    "slug": "will-gavin-newsom-win-the-2028-democratic-presidential-nomination-568",
    "outcomePrices": "[\"0.1655\", \"0.8345\"]",
    "volume": 28094556.136216003,
    "liquidity": 384002.95051,
    "endDate": "2028-11-08T04:59:00Z",
    "closed": false,
    "url": "https://polymarket.com/event/will-gavin-newsom-win-the-2028-democratic-presidential-nomination-568"
  }
]

Export as JSON, CSV or Excel, read through the API, or send to Google Sheets, Make, Zapier, n8n or webhooks. You can also run this Actor from AI agents through the Apify MCP server.

Pricing

Pay per event: $2.10 per 1,000 markets plus $0.00005 per run start. There is no extra platform usage charge beyond Apify’s normal platform fees if any apply to your plan.

FAQ

Do I need a Polymarket login or wallet? No. This Actor only reads the public Gamma API. No trading, no private keys.

Are prices live? They reflect the Gamma API snapshot at run time. Re-run for a fresh snapshot.

Can AI agents use it? Yes. JSON output works with Apify API, Zapier/Make/n8n, and the Apify MCP server.

Data source and license

Source: public Polymarket Gamma API. Not affiliated with Polymarket. You are responsible for complying with Polymarket’s terms and any local rules on prediction markets.

This Actor is not affiliated with or endorsed by the data source. You are responsible for using the data in line with the source's license and terms.