{"uid":"cap_xB3cYPDfpWBS8AgNm8QSW","slug":"free-api-resell-relayhop-workers-dev-1f194d5f","name":"Polymarket Prediction Market Listings","description":"Polymarket prediction-market listings. Query: ?limit=1-100. Source: Polymarket Gamma API (free).","url":"https://free-api-resell.relayhop.workers.dev/v1/polymarket/markets","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","properties":{"limit":{"in":"query","type":"string","description":"number of markets, 1-100 (default 20)"}}},"output":{"type":"object"}}},"responseSchema":null,"example":{"request":{"input":{"limit":"20"}},"response":{"_truncated":true,"_originalSize":133522}},"exampleRequest":{"input":{"limit":"20"}},"tags":["x402"],"displayCostAmount":"0.002","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_HaMx2U5_-3v-yrAmd3A6_","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches a paginated list of active Polymarket prediction market listings including market metadata","exampleAgentPrompt":"Can you pull the top 50 active prediction markets from Polymarket right now so I can see what events are currently listed?","exampleUseCases":[{"title":"Daily prediction market briefing","prompt":"Every morning, can you grab the latest active prediction markets from Polymarket and summarize the most interesting ones for me — things like politics, crypto, or sports?"},{"title":"Find arbitrage market opportunities","prompt":"Pull up to 100 active Polymarket listings and flag any markets where the current outcomes look mispriced or where there might be an interesting opportunity based on the available metadata."},{"title":"Track newly listed market events","prompt":"Check what prediction markets are currently live on Polymarket and let me know if there are any new events I haven't seen before, especially around upcoming elections or major news stories."}],"resultDescription":"Returns a JSON array of Polymarket prediction market objects sourced from the Polymarket Gamma API, including market names, outcomes, and associated metadata, up to the specified limit (default 20, max 100).","failureModes":["Invalid limit parameter (outside 1-100 range) returns an error","Upstream Polymarket Gamma API unavailability causes a 502 or timeout","Payment of 0.002 USDC not fulfilled triggers a 402 Payment Required response","Empty result set if no active markets are available"],"whenToPreferThis":"Use this endpoint when you need a quick, low-cost listing of active Polymarket prediction markets without setting up direct Polymarket API access. Ideal for agents that need to browse or surface market opportunities programmatically. At $0.002 per call it's economical for periodic polling.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:30:29.568Z","isFirstParty":false}