{"uid":"cap_vFsTJD8-vwvHnAsjfEoG8","slug":"synthora-polymarket-prediction-markets-feed-1204d41f","name":"SYNTHORA Polymarket Prediction Markets Feed","description":"Live Polymarket prediction-market feed for autonomous agents. Top markets by 24h volume with outcome probabilities, best bid/ask, spread, liquidity, 24h & total volume, 1d/1w price change and a freshness stamp. Keyless, sub-second, deterministic — drop-in prediction-market intelligence for A2A trading, research and signal agents. First 3 calls FREE per wallet.","url":"https://pm-markets.hergertsynthora.com/service","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"limit":{"type":"integer","description":"markets to return, max 50"},"search":{"type":"string","description":"optional keyword filter on question"}}},"responseSchema":{"type":"json","example":{"venue":"polymarket","markets":[{"bestAsk":0.75,"bestBid":0.74,"outcomes":[{"outcome":"Yes","probability":0.74}],"question":"..."}],"marketCount":10,"totalVolume24hUsd":28857909}},"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":"unknown","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_fpdOS4gpJzRtZ6h4lgqv3","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 live Polymarket prediction market data including outcome probabilities, bid/ask spreads, liquidity, and volume for top markets filtered by keyword","exampleAgentPrompt":"Pull the top 10 Polymarket prediction markets right now and show me the outcome probabilities, best bid/ask, and 24h volume — filter by 'election' if you can.","exampleUseCases":[{"title":"Election odds monitoring for news bot","prompt":"Grab the top 20 Polymarket markets matching 'election' and give me the current Yes/No probabilities plus 1-week price change so I can track how odds are shifting."},{"title":"Crypto event market snapshot","prompt":"Fetch the 15 most active Polymarket markets related to 'Bitcoin' right now, including best bid, best ask, spread, and 24h volume in USD."},{"title":"Arbitrage liquidity scanner","prompt":"Get me up to 50 active Polymarket markets, I want to see the bid-ask spread and liquidity on each one to spot any thin markets worth watching."}],"resultDescription":"A JSON object containing a list of prediction markets (up to the requested limit) from Polymarket, each with the market question, outcome names and probabilities, best bid price, best ask price, bid-ask spread, available liquidity, 24h volume in USD, total volume in USD, 1-day and 1-week price changes, plus a top-level summary with total 24h volume and market count, and a freshness timestamp.","failureModes":["Exceeds limit of 50 markets — request capped or rejected","Search keyword returns no matching markets — empty markets array","Payment not included or insufficient — 402 response requiring x402 payment (first 3 calls per wallet are free)","Service unavailable or Polymarket feed stale — error or stale freshness timestamp","Invalid input schema (e.g. non-integer limit) — validation error"],"whenToPreferThis":"Choose this endpoint when you need real-time Polymarket prediction market data including probabilities, order-book microstructure (bid/ask/spread), and volume metrics in a single keyless call. Prefer it over scraping Polymarket directly or using general web search when you need structured, machine-readable market data with sub-second latency and deterministic output. Especially useful for agents monitoring event probabilities, building forecasting dashboards, or scanning for arbitrage opportunities across many markets at once.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:37:58.882Z","isFirstParty":false}