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Polymarket Screener

by @bytesagain-lab

Filter Polymarket prediction markets and track probabilities. Use when screening bets, drafting analyses, outlining trends, tracking price movements.

Versionv2.0.1

Downloads776

Installs4

#writing #legal

View on ClawHub →

TERMINAL

clawhub install polymarket-screener

📖 About This Skill

version: "2.0.0" name: Polymarket Screener description: "Filter Polymarket prediction markets and track probabilities. Use when screening bets, drafting analyses, outlining trends, tracking price movements." author: BytesAgain homepage: https://bytesagain.com source: https://github.com/bytesagain/ai-skills

Polymarket Screener 🎯

Filter and analyze prediction markets on Polymarket using their public API. Find undervalued bets, track probability movements, and discover high-opportunity markets.

Comparison: Polymarket Screener vs Manual Browsing

| Capability | Manual Browsing | Polymarket Screener | |-----------|----------------|-------------------| | Filter by probability range | ❌ Limited | ✅ Exact range (e.g., 20%-40%) | | Filter by liquidity | ❌ No | ✅ Min/max liquidity filters | | Track probability changes | ❌ Manual checking | ✅ Automated tracking with delta | | Multi-category scan | ❌ One at a time | ✅ All categories at once | | Probability movement alerts | ❌ No | ✅ Configurable thresholds | | Historical probability data | ❌ Limited chart | ✅ Exportable time series | | Bulk opportunity scoring | ❌ No | ✅ Automated scoring | | Custom watchlists | ❌ No | ✅ JSON watchlist with tracking | | Export to HTML report | ❌ No | ✅ Professional report output | | Sort by expected value | ❌ No | ✅ Built-in EV calculator |

Getting Started

No API key needed — Polymarket's public API is free.

# List active markets
bash scripts/polymarket-screener.sh list --limit 20
Filter by category
bash scripts/polymarket-screener.sh list --category politics --limit 50
Find high-opportunity markets (low probability, high liquidity)
bash scripts/polymarket-screener.sh opportunities --min-liquidity 50000 --prob-range "5-30"
Track probability changes
bash scripts/polymarket-screener.sh track --market-id MARKET_SLUG --hours 48
Generate full screening report
bash scripts/polymarket-screener.sh report --output polymarket-report.html

Market Categories

politics — Elections, legislation, government actions

crypto — Price predictions, ETF approvals, protocol events

sports — Game outcomes, championships, player performance

entertainment — Awards, releases, celebrity events

science — Space, climate, research milestones

business — Earnings, IPOs, M&A, market indices

world — Geopolitics, international events

Opportunity Scoring

Markets are scored based on:

Score = (Liquidity Factor × 0.3) + (Probability Edge × 0.3) + (Time Value × 0.2) + (Movement × 0.2)Liquidity Factor:  Higher liquidity = higher score (easier to enter/exit)
Probability Edge:  Markets with probabilities far from 50% but trending = opportunity
Time Value:        Markets resolving soon with high uncertainty = valuable
Movement:          Recent probability shifts indicate new information

What Makes a Good Opportunity?

1. Probability between 15-35% or 65-85% — Enough edge without extreme odds 2. Liquidity > $50K — Can enter meaningful position 3. Recent movement > 5% — Market is actively repricing 4. Resolution within 30 days — Time value is concrete 5. Your own knowledge edge — You know something the market doesn't

Output Formats

| Command | Description | |---------|-------------| | markets | Markets | | odds | Odds | | value-bets | Value Bets | | watchlist | Watchlist |

API Rate Limits

Polymarket's public API has rate limits. The screener respects these automatically:

60 requests/minute for listing endpoints

120 requests/minute for market detail endpoints

Built-in retry with exponential backoff

Disclaimer

⚠️ Prediction markets involve real money and financial risk. This tool provides analysis only — it does not place bets or manage positions. Always do your own research.

💬 Feedback & Feature Requests: https://bytesagain.com/feedback Powered by BytesAgain | bytesagain.com

Commands

Run polymarket-screener help to see all available commands.

💡 Examples

No API key needed — Polymarket's public API is free.

# List active markets
bash scripts/polymarket-screener.sh list --limit 20
Filter by category
bash scripts/polymarket-screener.sh list --category politics --limit 50
Find high-opportunity markets (low probability, high liquidity)
bash scripts/polymarket-screener.sh opportunities --min-liquidity 50000 --prob-range "5-30"
Track probability changes
bash scripts/polymarket-screener.sh track --market-id MARKET_SLUG --hours 48
Generate full screening report
bash scripts/polymarket-screener.sh report --output polymarket-report.html