{"uid":"cap_KDLSvMa4H0ga_k2088hd_","slug":"mcpfax-polymarket-markets-ce03314c","name":"MCPFax Polymarket Markets","description":"MCPFax markets — Polymarket markets (polymarket_markets). Price: $0.001 USDC per call on Base.","url":"https://mcpfax-markets.bowling-anthony.workers.dev/polymarket/markets","method":"GET","headers":{},"bodySchema":{"type":"object","$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"],"type":"string"},"queryParams":{"type":"object"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_MZcDk5EoZwRifGXjq_Pr3","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches a list of Polymarket prediction markets with pricing and metadata","exampleAgentPrompt":"Show me the currently active prediction markets on Polymarket — I want to see what topics are available to trade on right now, especially anything related to the US election or crypto.","exampleUseCases":[{"title":"Research active election prediction markets","prompt":"Pull up the current Polymarket markets about the 2024 US presidential election — I want to see the odds and how much liquidity is in each one."},{"title":"Monitor crypto outcome markets","prompt":"What Polymarket markets are open right now related to Bitcoin or Ethereum prices? I want to track the crowd's predictions on crypto."},{"title":"Scout new and trending prediction markets","prompt":"Can you fetch the latest Polymarket markets for me? I'm looking for newly opened or trending markets to find good trading opportunities."}],"resultDescription":"Returns a list of Polymarket prediction markets including market titles, current outcome prices/probabilities, liquidity, volume, open/close status, and market identifiers. Each entry describes a binary or categorical outcome market on the Polymarket platform.","failureModes":["Payment failure if USDC balance on Base is insufficient (x402 payment required)","Polymarket API downtime causing empty or error responses","No markets returned if filter criteria match nothing","Rate limiting or throttling if called too frequently"],"whenToPreferThis":"Use this endpoint when you need to discover or browse active Polymarket prediction markets, check current odds, or find markets on specific topics. Prefer this over polymarket_events when you want market-level granularity (prices, liquidity) rather than event-level groupings.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T12:34:09.629Z","isFirstParty":false}