{"uid":"cap_fxnzp5B7O8hyGER6zCt5p","slug":"coincap-historical-price-series-c19d4e54","name":"CoinCap Historical Price Series","description":"Historical price series for an asset slug (capped data points).","url":"https://rest.coincap.io/v3/agentFriendly/history/bitcoin","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","HEAD","DELETE"],"type":"string"},"pathParams":{"type":"object","required":["slug"],"properties":{"slug":{"type":"string"}}},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_0935-13iKb5BNPl_fFKyf","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a capped historical price time series for a specific cryptocurrency asset slug (e.g. bitcoin).","exampleAgentPrompt":"Pull the historical price series for bitcoin from CoinCap so I can see how its USD price has changed over time.","exampleUseCases":[{"title":"Crypto portfolio performance review","prompt":"Can you get me the historical price data for bitcoin from CoinCap? I want to see how prices have moved over time to review my portfolio performance."},{"title":"Backtesting a trading strategy","prompt":"Fetch the historical price series for ethereum from CoinCap — I need past price data points to backtest a simple moving average trading strategy."},{"title":"Charting a coin's price trend","prompt":"Grab the historical price history for solana from CoinCap so I can chart how it's trended over the past period."}],"resultDescription":"Returns a capped series of historical price data points for the specified cryptocurrency asset, including timestamps and USD price values, suitable for charting, analysis, or backtesting.","failureModes":["Invalid or unknown asset slug returns an error or empty response","Capped data points limit — only a maximum number of data points returned, not full granular history","Payment failure (x402) if the $0.01 USDC call fee is not satisfied","Network timeout or service unavailability from CoinCap servers"],"whenToPreferThis":"Use this endpoint when you need a quick, agent-friendly historical price series for a specific cryptocurrency by slug (e.g. 'bitcoin', 'ethereum'). Prefer this over raw exchange APIs or full market data providers when you want a simple, pre-formatted time series with minimal overhead and a low per-call cost. If you need technical indicators like MACD or EMA, use the sibling indicator endpoints instead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:36:00.270Z","isFirstParty":false}