Polymarket Whale Alerts & Odds Movement Scanner

Find unusual activity on Polymarket without manually refreshing market pages.

This Actor scans active Polymarket markets and recent trades to surface structured signals such as whale trades, large 24h volume, meaningful odds movement, and high-liquidity markets that match your keywords.

What it is useful for

• Monitoring markets tied to themes like crypto, elections, macro, AI, sports, or breaking news
• Finding large trades that may be worth reviewing
• Spotting active/high-liquidity markets faster
• Creating scheduled prediction-market research feeds
• Sending structured market signals into dashboards, agents, spreadsheets, Slack, Telegram, or webhooks

Signals detected

Signal	What it means
Whale trade	A recent trade exceeds your configured USD threshold
Odds movement	A market moved by more than your configured 24h percentage-point threshold
Volume spike	24h market volume exceeds your configured threshold
High liquidity	Market liquidity and volume clear your filters
New/discovered market	Active keyword-matched market worth reviewing

Example use cases

• “Show me large Bitcoin-related Polymarket trades.”
• “Find active Fed / inflation / election markets.”
• “Monitor markets with meaningful odds movement.”
• “Run this every hour and export results to a dataset or webhook.”

Example input

{
  "keywords": ["Bitcoin", "Fed", "Trump", "election"],
  "signalTypes": ["whale_trade", "odds_movement", "volume_spike", "high_liquidity"],
  "whaleTradeThresholdUsd": 5000,
  "oddsMoveThresholdPct": 5,
  "volumeSpikeThresholdUsd": 50000,
  "minLiquidityUsd": 5000,
  "maxResults": 250
}

Example output

{
  "source": "polymarket",
  "signalType": "whale_trade",
  "marketTitle": "Will Bitcoin hit $150k in 2026?",
  "marketUrl": "https://polymarket.com/market/...",
  "side": "BUY",
  "outcome": "Yes",
  "price": 0.31,
  "tradeValueUsd": 12500,
  "wallet": "0x...",
  "reason": "BUY Yes worth approximately $12,500.",
  "detectedAt": "2026-07-06T00:00:00Z"
}

Pricing suggestion

Launch pricing: $0.25 per completed scan.

For Apify pay-per-event monetization, configure the event name:

scan_completed

This is intentionally low-friction so users can test scheduled scans, keyword watchlists, and alert workflows without committing to a subscription.

Notes and limitations

• This Actor is for research and monitoring only.
• It does not place trades.
• It does not provide financial advice.
• “Whale” thresholds are configurable and based on observed trade value.
• Cross-market Kalshi comparison is planned for a future version, not included in this MVP.

Output

Results are saved to the default Apify dataset as structured JSON records, ready for API use, export, scheduling, or webhook automation.