{"name":"prediction-markets","description":"List and search active Polymarket prediction markets with outcome probabilities, liquidity, volume, end dates, and URLs. Data-only market research for event odds — no trade signals, custody, or execution.","price":"$0.005","method":"POST","input_schema":{"properties":{"query":{"type":"string","description":"Free-text filter applied to question, description, and slug."},"category":{"type":"string","description":"Filter by Polymarket category substring, e.g. 'Sports', 'Crypto', 'Politics'."},"tag":{"type":"string","description":"Polymarket tag slug filter, passed through to upstream."},"active":{"type":"boolean","description":"Default true. Pass false to include inactive markets."},"closed":{"type":"boolean","description":"Default false. Pass true to include closed markets."},"limit":{"type":"number","description":"1-100. Default 20."},"offset":{"type":"number","description":"Pagination offset."},"min_liquidity":{"type":"number","description":"Minimum liquidity in USD."}}},"input_example":{"query":"election","active":true,"limit":10},"output_example":{"markets":[{"question":"Will candidate X win?","outcome_prices":[0.42,0.58]}],"count":10},"x402_payment_required":true,"x402_facilitator":"https://api.cdp.coinbase.com/platform/v2/x402"}