{"uid":"cap_xaf6gXYXbItw2beKBgjmg","slug":"polymarket-odds-movers-fc079088","name":"Polymarket Odds Movers","description":"Polymarket odds movers: active markets ranked by biggest price swing in the last 1h / 24h / 1wk (window param), with yes price, change and direction, best bid/ask, spread, 24h volume, liquidity and end date. The momentum signal prediction bots scan before entering a market. No charge on service failure. Ed25519-signed. $0.10 USDC per call via x402 on Base. Free trial: 3 calls per wallet with header X-WALLET.","url":"https://api.hergertsynthora.com/v1/polymarket-odds-movers","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"limit":{"type":"integer","description":"Max markets (1-50, default 15)"},"window":{"type":"string","description":"1h | 24h | 1wk (default 24h)"},"min_volume":{"type":"number","description":"Min 24h volume USD (default 10000)"}}},"responseSchema":{"type":"json","example":{"ok":true,"niche":"polymarket_odds_movers","result":{"count":15,"movers":[{"slug":"...","change":0.21,"spread":0.01,"end_date":"...","question":"...","direction":"up","yes_price":0.63,"liquidity_usd":80000,"volume_24h_usd":150000}],"window":"24h","up_count":9,"down_count":6,"markets_scanned":400,"biggest_move_abs":0.45}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_brk_HcyRS-RxTFekrHkpH","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the top prediction market contracts on Polymarket ranked by the largest price movement within a configurable time window","exampleAgentPrompt":"Show me the top 20 Polymarket markets with the biggest odds moves over the last 24 hours, only including markets with at least $10,000 in volume.","exampleUseCases":[{"title":"Spot fast-moving political contracts","prompt":"Find the 15 Polymarket markets moving the most in the last hour — I want to see which political or news-driven contracts are suddenly shifting, with at least $10k in volume."},{"title":"Weekly prediction market recap","prompt":"Pull the top 20 Polymarket odds movers from the past week so I can see which long-running contracts had the biggest sentiment shifts — include liquidity and direction for each."},{"title":"High-liquidity volatility scanner","prompt":"Scan Polymarket for the 10 most volatile contracts in the last 24 hours, but only show me markets with at least $50,000 in daily volume so I know these moves are meaningful."}],"resultDescription":"A JSON object containing a ranked list of up to 50 Polymarket prediction market contracts sorted by absolute price change. Each market entry includes the slug, question text, direction of move (up/down), new yes price, price change delta, spread, liquidity in USD, 24h volume in USD, and end date. The response also includes aggregate stats: total markets scanned, count of up-movers and down-movers, the time window used, and the single largest absolute move observed.","failureModes":["Invalid window value (not 1h, 24h, or 1wk) returns a validation error","limit out of range (below 1 or above 50) causes a 400 error","Polymarket API unavailability upstream may cause timeouts or degraded results","min_volume too high may return an empty movers list with count 0","Payment failure via x402 protocol returns 402 before the endpoint is reached"],"whenToPreferThis":"Use this endpoint when you need real-time ranked intelligence on which Polymarket prediction markets are moving fastest, rather than fetching all markets or a static snapshot. Prefer it over generic Polymarket API calls when you want pre-filtered, sorted, and enriched mover data with volume and liquidity context in a single call, saving agent-side computation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:42:40.642Z","isFirstParty":false}