{"uid":"cap_eDyvS6I1sZ1JTHKSL-D1-","slug":"cryptopulse-perpetual-funding-rate-history-ab74d6bd","name":"CryptoPulse Perpetual Funding Rate History","description":"Perp funding-rate HISTORY, deterministic and lookahead-safe. Answers \"what was funding for this coin over the last N days\", \"backtest my strategy against real funding\". Hourly Hyperliquid funding rows for up to 90 days per call (windows anchor anywhere in a year+ of history): settlement time, hourly rate, annualized percent, premium, and an available_at timestamp per row so recorded history is point-in-time honest. Summary stats included. Keyless public data, no LLM.","url":"https://cryptopulse.theaslangroupllc.com/api/funding-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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":["coin"],"properties":{"end":{"type":"string","description":"ISO date anchoring the window end (default now) — walk backward for longer history"},"coin":{"type":"string","description":"Hyperliquid perp symbol, e.g. BTC, ETH, SOL"},"days":{"type":"number","description":"window length in days (default 7, max 90 per call)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"errors":{"type":"object","description":"Documented error responses, keyed by HTTP status code","additionalProperties":{"type":"object","required":["description"],"properties":{"example":{"type":"object"},"description":{"type":"string"}}}},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","errors":{"400":{"example":{"error":"coin parameter required"},"description":"Invalid or missing parameter(s) — required: coin. Returned before the payment gate on paid requests, so a malformed call is never charged. JSON body: { error: <what is wrong and how to fix it> } plus usage hints."},"402":{"description":"Payment required — x402 v2 challenge; the accepts array lists scheme, network, and amount. Retry the same request with a PAYMENT-SIGNATURE (v2) or X-PAYMENT (v1) header. Verification is free."},"500":{"example":{"error":"upstream_failed"},"description":"Unexpected server error. If a payment settled without a usable result, contact info@theaslangroupllc.com with the settlement tx hash for a re-run or credit."}},"example":{"coin":"ETH","rows":168,"history":[{"time":"2026-07-14T05:00:00.000Z","rate_hourly":0.0000125,"available_at":"2026-07-14T05:00:00.000Z","rate_annualized_pct":10.95}],"summary":{"max_annualized_pct":38.1,"min_annualized_pct":-4.2,"mean_annualized_pct":10.9},"deterministic":true}},"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":{"p10Cents":"5.0000","medianCents":"5.0000","p90Cents":"5.0000","minCents":"5.0000","maxCents":"5.0000","p95Cents":"5.0000","sampleCount":1,"varies":false,"failureChargeRate":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_gvc_ryDtaC9swDttJEZfm","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 point-in-time historical hourly funding rate data for perpetual futures on Hyperliquid, covering up to 90 days per call with per-row settlement timestamps and availability markers for accurate backtesting.","exampleAgentPrompt":"Pull the hourly Hyperliquid funding rate history for BTC over the last 60 days — I need the settlement time, hourly rate, annualized percent, premium, and available_at per row so I can backtest a funding arbitrage strategy without lookahead bias.","exampleUseCases":null,"resultDescription":"An array of hourly funding rate rows for the requested coin and date window, each containing: settlement timestamp, hourly funding rate, annualized funding rate percentage, premium, and an available_at timestamp (enabling point-in-time honest backtesting). Also includes summary statistics over the requested period such as average, min, and max rates.","failureModes":["Unknown or unsupported coin symbol returns an error or empty dataset","Requested date range exceeds 90-day maximum window per call","Future dates or dates beyond the available history (~1 year) return no data","Malformed date/time parameters cause a 400 bad request","Network or upstream Hyperliquid data unavailability causes a 503 or timeout","Payment not processed correctly results in a 402 response"],"whenToPreferThis":"Choose this endpoint when you need point-in-time honest historical funding rate data for perpetual futures on Hyperliquid — especially for backtesting trading strategies, auditing past funding payments, or analyzing funding rate trends over days to months. Prefer this over a real-time funding endpoint when you need historical windows rather than current rates, and over generic crypto data APIs when you specifically need Hyperliquid perp funding with lookahead-safe available_at timestamps.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T07:03:05.940Z","isFirstParty":false,"canonicalSlug":"cryptopulse-perpetual-funding-rate-history-ab74d6bd"}