Polymarket Monitor
Track prediction market prices, volume, and liquidity on Polymarket using the Gamma API and CLOB API.
When to Use
Use this skill when the user asks about:
- Trending or popular Polymarket markets
- Current price or probability for a prediction market
- Volume or trading activity on a market
- Order book depth or liquidity for a specific outcome
- New or recently created prediction markets
- Price movements or volume spikes on Polymarket
Key Concepts
- Price = Implied Probability: A contract at $0.65 means 65% implied probability
- Token ID: Each outcome (Yes/No) has a unique token ID used by the CLOB API
- Condition ID: The unique identifier for a market (question) in the Gamma API
- CLOB: Central Limit Order Book — where bids and asks are matched
Operations
1. List Trending Markets
Show the top active markets sorted by 24-hour volume:
curl -s "https://gamma-api.polymarket.com/markets?closed=false&active=true&order=volume24hr&ascending=false&limit=10" \
| jq '[.[] | {
question: .question,
price_yes: (.outcomePrices // "[]" | fromjson | .[0] // "N/A"),
price_no: (.outcomePrices // "[]" | fromjson | .[1] // "N/A"),
volume_24h: ((.volume24hr // 0) | tonumber | round),
total_volume: ((.volumeNum // 0) | tonumber | round),
liquidity: ((.liquidityNum // 0) | tonumber | round),
end_date: .endDate
}]'
## About
Built by [AgentBets](https://agentbets.ai) — full tutorial at [agentbets.ai/guides/openclaw-polymarket-monitor-skill/](https://agentbets.ai/guides/openclaw-polymarket-monitor-skill/).
Part of the [OpenClaw Skills series](https://agentbets.ai/guides/#openclaw-skills) for the [Agent Betting Stack](https://agentbets.ai/guides/agent-betting-stack/).