{"uid":"cap_uSgIHHVp6Mn5HBBRP-MwN","slug":"prediction-market-price-history-55868785","name":"Prediction Market Price History","description":"Prediction market price history - one market's implied-probability series over 1d, 1w, 1m or max, with first/last/high/low/change, for a Polymarket market (condition id, slug or numeric id) or a Kalshi market (ticker). Ids come from /pm/search. Backtesting, charting, trend confirmation. ?id=<market id>&interval=1d|1w|1m|max.","url":"https://clinkagent.com/pm/history?utm_source=zero.xyz","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","required":["id"],"properties":{"id":{"type":"string"},"interval":{"enum":["1d","1w","1m","max"],"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"stats":{"low":0.04,"high":0.09,"last":0.05,"first":0.08,"change":-0.03,"points":57},"market":{"platform":"polymarket","question":"..."},"points":[{"p":0.08,"t":"2026-09-09T00:00:00.000Z"}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_vXRRhbP7ugZTw8kaMPmNF","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns implied-probability price history (OHLC + change) for a Polymarket or Kalshi prediction market over 1d, 1w, 1m, or max intervals","exampleAgentPrompt":"Pull the 1-week implied-probability history for the Polymarket market with slug 'will-the-fed-cut-rates-in-september' — I want to see the first, last, high, low, and change so I can check the trend.","exampleUseCases":[{"title":"Trend confirmation before trading","prompt":"Get me the 1-month price history for the Polymarket market with condition id 0xabc123 — I want to see if the implied probability has been trending up or down before I take a position."},{"title":"Backtesting a market prediction strategy","prompt":"Fetch the max history for the Kalshi market with ticker FOMC-25JAN-T5.00 so I can backtest how the market moved around past Fed decisions."},{"title":"Charting a market for a dashboard","prompt":"I need the 1-day implied-probability series for Polymarket slug 'us-recession-2025' — give me the open, high, low, close, and net change so I can plot it on my dashboard."}],"resultDescription":"A time-series of implied probability values for the requested market over the chosen interval, along with summary statistics: first price, last price, high, low, and net change — suitable for charting, trend analysis, or backtesting.","failureModes":["Invalid or unknown market id returns an error (market not found)","Unsupported interval value (must be 1d, 1w, 1m, or max)","Market id not provided returns a 400 bad request","Market with no historical data may return an empty series","Payment not completed (x402) results in a 402 Payment Required response","Rate limiting or quota exhaustion returns a 429 error"],"whenToPreferThis":"Choose this endpoint when you need historical implied-probability data (OHLC + change) for a specific Polymarket or Kalshi market for charting, trend analysis, or backtesting. It is purpose-built for prediction market history and supports both Polymarket (condition id, slug, numeric id) and Kalshi (ticker) identifiers. Use /pm/search first to discover market ids if you don't have them.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T00:43:56.536Z","isFirstParty":false,"canonicalSlug":"prediction-market-price-history-55868785"}