{"uid":"cap_h17MmeFM81Z8QlON9K1-J","slug":"trending-prediction-markets-cff1d9a8","name":"Trending Prediction Markets","description":"Top active prediction markets by 24h trading volume on Polymarket -- what's trending right now, no keyword needed. Pairs with /prediction-markets (keyword search) and /prediction-market (exact-ID lookup): use this one when you don't already know what to search for. Not ticker-specific. Supports optional limit (default 10, max 25). $0.01/call.","url":"https://www.x402financialdata.com/trending-markets","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":[],"properties":{"limit":{"type":"integer","description":"Max markets to return, default 10, max 25."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Dm42nPAe7TQ2ETLaSeJLJ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the top active prediction markets on Polymarket ranked by 24-hour trading volume, with no keyword required.","exampleAgentPrompt":"What are the top 15 trending prediction markets on Polymarket right now, ranked by 24-hour trading volume?","exampleUseCases":[{"title":"Morning market briefing for trader","prompt":"Give me the top 20 most active Polymarket prediction markets right now so I can see where trading volume is concentrated today."},{"title":"Trending topics discovery for analyst","prompt":"What are people actively betting on in prediction markets today? Show me the top 10 trending markets."},{"title":"Automated trend monitoring dashboard","prompt":"Pull the top 25 trending prediction markets by volume so I can track what events are dominating Polymarket this week."}],"resultDescription":"Returns a ranked list of up to 25 prediction markets (default 10) ordered by 24-hour trading volume, including market names, IDs, current odds, volume figures, and close dates sourced live from Polymarket.","failureModes":["limit parameter exceeds 25 — clamped or rejected with validation error","Polymarket data temporarily unavailable — upstream timeout or empty response","Invalid limit type (non-integer) — schema validation error","Payment not processed — 402 payment required error if x402 payment header missing"],"whenToPreferThis":"Use this endpoint when you have no specific keyword or market ID in mind and want to discover what's currently popular on Polymarket by trading activity. Prefer this over /prediction-markets (keyword search) when the user asks broadly about 'what's trending' or 'what's hot' without naming a specific topic, and prefer it over /prediction-market (exact-ID lookup) when you don't already know the market ID.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:47:58.409Z","isFirstParty":false}