{"uid":"cap_bRCN0UaaDYVMx40JUrFSI","slug":"byte-library-x402-gateway-perpetual-funding-rates-feed-11f2c796","name":"BYTE Library x402 Gateway – Perpetual Funding Rates Feed","description":"Cross-venue perpetual-swap funding rates (Hyperliquid, dYdX, Aevo live; GMX + Vertex coming v1.1) + spread. Annualized.","url":"https://x402.payperbyte.io/feeds/perp-funding","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","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":{"request":{"properties":"funding_rates,mark_price,index_price"},"response":{"data":{"v":1,"ts":"2026-06-12T04:48:41Z","feed":"perp-funding","assets":[{"asset":"BTC","spread":{"max":0.1095,"min":0.038097,"spread":0.071403},"rates_apr":{"aevo":0.0438,"dydx":0.038097,"hyperliquid":0.1095},"rate_basis":"annualized fraction (e.g. 0.0146 = 1.46% APR)"},{"asset":"ETH","spread":{"max":0.109637,"min":-0.05256,"spread":0.162197},"rates_apr":{"aevo":-0.05256,"dydx":0.109637,"hyperliquid":-0.030416},"rate_basis":"annualized fraction (e.g. 0.0146 = 1.46% APR)"},{"asset":"SOL","spread":{"max":0,"min":-0.11388,"spread":0.11388},"rates_apr":{"aevo":-0.11388,"dydx":0,"hyperliquid":-0.098411},"rate_basis":"annualized fraction (e.g. 0.0146 = 1.46% APR)"},{"asset":"ARB","spread":{"max":0.0438,"min":-0.126445,"spread":0.170245},"rates_apr":{"aevo":0.0438,"dydx":0,"hyperliquid":-0.126445},"rate_basis":"annualized fraction (e.g. 0.0146 = 1.46% APR)"},{"asset":"AVAX","spread":{"max":0.092127,"min":0,"spread":0.092127},"rates_apr":{"aevo":0.07884,"dydx":0,"hyperliquid":0.092127},"rate_basis":"annualized fraction (e.g. 0.0146 = 1.46% APR)"}],"disclaimer":"Not financial advice. For informational and educational purposes only. Do not rely on this data for trading or investment decisions without independent verification.","venues_active":["aevo","dydx","hyperliquid"],"venues_configured":["hyperliquid","dydx","aevo","vertex","gmx"],"disclaimer_category":"financial"},"feed":"perp-funding","source":"byte-library-broadcast","txHash":"0x7addd10b59c911a973fb89a2fccf4f227a50c9f7c8b91f43b5d04a84cf07e319","publisher":"0x533f447c2b82cf903e8189778636ef96c652c892","timestamp":"2026-06-12T04:48:44Z","payloadHash":"0x301c31c4e304f96e919bbc30c2d792a4d1830ed70f3114a6f120dc32ac60dacd","payloadBytes":1387}},"exampleRequest":{"properties":"funding_rates,mark_price,index_price"},"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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_traVv_F83xjxI4DDFcXWB","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 cryptographically signed, EIP-712 provenance-stamped perpetual futures funding rate data for crypto markets, paid per call in USDC via x402","exampleAgentPrompt":"Fetch me the current perpetual futures funding rates from the BYTE Library provenance feed — I want the cryptographically signed, EIP-712 attested payload and I'll pay in USDC via x402 on Base.","exampleUseCases":null,"resultDescription":"A JSON payload containing the 'perp-funding' feed data, cryptographically signed and stamped with an EIP-712 PayloadAttestation for provenance verification. The response includes current perpetual futures funding rate data for crypto markets. Each payload is verifiable on-chain and priced at $0.007325 USDC per call, settled on Base (eip155:8453).","failureModes":["Insufficient USDC payment or missing x402 payment header returns 402 Payment Required","Invalid or expired payment token results in authentication failure","Network congestion on Base chain may delay payment settlement","Feed temporarily unavailable returns 503 or timeout","Malformed request with invalid properties returns 400 Bad Request"],"whenToPreferThis":"Choose this endpoint when you need cryptographically signed, provenance-verified perpetual futures funding rate data and can pay per call in USDC without managing API keys. Ideal for DeFi agents, on-chain trading bots, or risk systems that need attestable data provenance via EIP-712. Prefer this over traditional REST APIs when trustless data verification and wallet-based authentication matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:32:48.945Z","isFirstParty":false}