{"uid":"cap_4ddYrtBoc7yhsVyqGiBOs","slug":"klymax402-trending-prediction-markets-api-4b437a81","name":"Klymax402 Trending Prediction Markets API","description":"One MCP endpoint gives your AI agent access to 100 APIs -- crypto, DeFi, web, AI, finance and utilities. No API keys, USDC on Base from $0.003/call.","url":"https://klymax402.com/api/prediction-markets/api/trending","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"limit":{"type":"number","description":"Number of trending markets to return (1-30). Default: 10."},"source":{"enum":["polymarket","kalshi"],"type":"string","description":"Filter by platform. Omit to get trending markets from both Polymarket and Kalshi."}}},"responseSchema":{"type":"json","example":{"source":"example","markets":[],"results":1,"timestamp":"example"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.008","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":"$0.008/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_WF1tHUEw0DoOOVWrtrmqp","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.008","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches currently trending prediction markets from Polymarket and/or Kalshi, ranked by activity or volume.","exampleAgentPrompt":"Show me the top 15 trending prediction markets from both Polymarket and Kalshi right now.","exampleUseCases":[{"title":"Monitor hot political betting markets","prompt":"What are the top 10 trending prediction markets on Polymarket right now? I want to see what political or election bets are getting the most action."},{"title":"Daily briefing on Kalshi trends","prompt":"Pull the top 5 trending markets from Kalshi for my morning briefing — I want to know what traders are focused on today."},{"title":"Combined trending markets overview","prompt":"Get me up to 20 trending prediction markets from both Polymarket and Kalshi combined so I can compare what's hot across platforms."}],"resultDescription":"Returns a JSON object containing a list of trending prediction markets (up to 30), the source platform(s) they come from, a result count, and a timestamp. Each market entry represents an active, high-engagement market from Polymarket, Kalshi, or both.","failureModes":["Invalid 'source' value returns an error (must be 'polymarket' or 'kalshi')","Limit out of range (must be 1-30) may return an error or default behavior","Upstream Polymarket or Kalshi API unavailability may result in empty or partial results","Payment failure via x402 protocol blocks request entirely"],"whenToPreferThis":"Use this endpoint when you need a quick, ranked view of what's currently trending across Polymarket and/or Kalshi without needing to authenticate with those platforms directly. Prefer this over building direct integrations when you want combined cross-platform trending data in a single call, or when you need a no-API-key solution paid per-use via USDC.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:42:47.794Z","isFirstParty":false}