{"uid":"cap_KL2iXbUPguE7eYiwQ943P","slug":"hyperliquid-perpetual-funding-rates-api-01a85c4b","name":"Hyperliquid Perpetual Funding Rates API","description":"Perp funding rates (Hyperliquid): top-15 extremes or requested symbols, hourly + annualized %, mark price, open interest. Crowded-positioning signal for trading agents. Param: symbols (optional, e.g. BTC,ETH,SOL).","url":"https://opportunity-api-production.up.railway.app/api/funding-rates","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":[],"properties":{"symbols":{"type":"string","description":"comma-separated, e.g. BTC,ETH,SOL. Default: top-15 by absolute rate"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_D2wdsp4EOvHhc4hrAYq33","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches perpetual futures funding rates from Hyperliquid — top-15 extremes or specified symbols — with hourly and annualized percentages, mark price, and open interest as crowded-positioning signals.","exampleAgentPrompt":"What are the most extreme perp funding rates on Hyperliquid right now — show me the top 15 by absolute rate with their annualized percentages, mark prices, and open interest so I can spot crowded positions.","exampleUseCases":null,"resultDescription":"Returns a list of up to 15 perpetual markets (or the requested symbols) with: symbol name, hourly funding rate (%), annualized funding rate (%), current mark price, and open interest in USD. Useful for identifying overfunded or underfunded positions and crowded directional bets.","failureModes":["Invalid symbol name returns empty or error response","Network timeout if Hyperliquid API is temporarily unavailable","Stale data if the upstream feed has a lag","Payment failure (402) if x402 USDC payment is not included or rejected","No data returned if requested symbol has no active perp market on Hyperliquid"],"whenToPreferThis":"Use this endpoint when you need real-time perpetual funding rate data from Hyperliquid specifically, want to identify the most extreme funding conditions across the market (top-15 ranking), or need open interest alongside funding for crowded-trade analysis. Prefer over generic aggregators when Hyperliquid-specific data is required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:34:55.439Z","isFirstParty":false}