{"uid":"cap_Lee6EA_5agLKl2qtyeLju","slug":"zatena-polymarket-markets-catalog-16558d3c","name":"Zatena Polymarket Markets Catalog","description":"Normalized Polymarket catalog with implied probabilities and liquidity","url":"https://api.zatena.com/markets?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":null,"responseSchema":{"markets":[{"title":"string","liquidity":1000,"tokenIdNo":"string","impliedYes":0.5,"tokenIdYes":"string","conditionId":"0x.."}]},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"down","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_jaWvFBFuUNtGip0SIicsD","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a normalized catalog of Polymarket prediction markets with titles, implied probabilities, token IDs, liquidity, and condition IDs","exampleAgentPrompt":"Pull the current Polymarket markets catalog for me — I want to see all active markets with their implied yes probabilities and liquidity so I can identify the most liquid ones to trade.","exampleUseCases":null,"resultDescription":"A JSON array of prediction market objects, each containing the market title, current liquidity (in USDC), implied probability for the 'yes' outcome (0–1 float), yes and no token IDs for on-chain trading, and the condition ID for the market contract.","failureModes":["Payment not received or x402 payment header missing — returns 402 Payment Required","API unavailable or upstream Polymarket data stale — returns 5xx error","Malformed request — returns 400 Bad Request","Empty markets array returned if no active markets are available"],"whenToPreferThis":"Use this endpoint when you need a normalized, ready-to-use snapshot of Polymarket prediction markets including implied probabilities and liquidity in a single call, rather than scraping Polymarket directly or parsing raw on-chain data. Ideal for agents building trading strategies, dashboards, or market scanners on top of Polymarket without dealing with raw contract data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T03:28:57.869Z","isFirstParty":false,"canonicalSlug":"zatena-polymarket-markets-catalog-16558d3c"}