Polymarket Odds Tracker

Track real-time prediction market odds on Polymarket — elections, crypto, sports, AI, macro events. Filter by tag, volume, end date. No API key required.

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What It Does

Polymarket is the largest on-chain prediction market — billions in volume across politics, crypto, sports, and macro events. This Actor extracts live market data:

• Question + description
• All outcomes with current prices (implied probability)
• Best bid / best ask + spread
• Volume (total + 24h) + liquidity
• End date + days remaining
• Tags and category

Filterable by tag (crypto, politics, sports, ai, etc), min volume, sortable by volume / liquidity / end date.

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Why This Matters

Prediction markets are the best-aggregated probability source for upcoming events. A 70¢ price on "Will Fed cut in March?" reflects the wisdom of capitalized traders, not pundits.

• Macro traders — Fed rate decisions, CPI ranges, recession probability
• Crypto traders — BTC price targets, ETF approvals, token launches
• News/political — election odds with sub-week granularity
• AI/tech — AGI timelines, GPT release dates, company outcomes

The official Polymarket UI is great for browsing; this Actor turns it into a programmatic data feed for dashboards, alerts, and bots.

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Input

Field	Type	Default	Description
tags	string[]	[]	Filter by tag (crypto, politics, sports, ai). Empty = all
minVolumeUsd	integer	10000	Min market volume
activeOnly	boolean	true	Skip closed/resolved markets
sortBy	string	volume_desc	volume_desc, liquidity_desc, end_date_asc, created_desc
limit	integer	50	Max results (1–500)

Example: Top crypto markets

{"tags": ["crypto"], "minVolumeUsd": 100000, "sortBy": "volume_desc"}

Example: Soon-expiring high-liquidity markets

{"sortBy": "end_date_asc", "minVolumeUsd": 500000, "limit": 20}

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Output

{
  "id": "0x...",
  "slug": "will-btc-hit-100k-by-end-of-march-2026",
  "question": "Will BTC hit $100K by end of March 2026?",
  "category": "Crypto",
  "tags": ["Crypto", "Bitcoin"],
  "active": true,
  "end_date": "2026-03-31T23:59:00Z",
  "days_until_end": 124.5,
  "volume_usd": 4250000,
  "volume_24h_usd": 82000,
  "liquidity_usd": 850000,
  "best_bid": 0.34,
  "best_ask": 0.36,
  "spread": 0.02,
  "outcomes": [
    {"name": "Yes", "price": 0.35, "implied_pct": 35.0},
    {"name": "No",  "price": 0.65, "implied_pct": 65.0}
  ],
  "leading_outcome": {"name": "No", "price": 0.65, "implied_pct": 65.0},
  "polymarket_url": "https://polymarket.com/event/..."
}

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Pricing

• $0.001 per market returned

Examples:

• Top 50 crypto markets: $0.05
• Full sweep 500 markets: $0.50

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Data Source

Polymarket Gamma API — official public endpoint, no auth.

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Related Actors

• Crypto ETF Flow Tracker — Institutional flow context for ETF-approval predictions.
• Smart Money Wallet Tracker — On-chain positioning vs prediction-market odds.
• Bitcoin Mempool Analytics — Real-time BTC network state.

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🎬 Live Sample Run

A real run of this actor with default-ish inputs, executed on 2026-06-10:

Field	Value
Items in dataset	20
Dataset (JSON)	https://api.apify.com/v2/datasets/jHUhSh78nAX65BctH/items?clean=1&format=json
Dataset (CSV)	https://api.apify.com/v2/datasets/jHUhSh78nAX65BctH/items?clean=1&format=csv
Run summary (KVS)	https://api.apify.com/v2/key-value-stores/Uahls6Np1m9sQ6kyl/records/SUMMARY
Run details	https://api.apify.com/v2/actor-runs/Soaxu48HNbpvYvPbm

Try it now: pop any of the dataset URLs in your browser to see live output, or hit the API endpoints from your code.

Want to reproduce? Click Try Actor on the Apify Store page and use the input defaults shown above.

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