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/).