{"uid":"cap_xJq5Ye01lnLqpJ2QzZhjB","slug":"speraxos-funding-rates-intelligence-api-4ef25dbd","name":"SperaxOS Funding Rates Intelligence API","description":"AI-powered DeFi intelligence APIs payable via the x402 HTTP payment protocol. No API key required — pay per request with USDC on Base. Identity-only (SIWX) endpoints are free for wallets with an agentcash identity.","url":"https://chat.sperax.io/api/x402/intel/funding-rates?utm_source=zero.xyz","method":"HEAD","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"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_KNVfN5IfLFtFdHTFAUgw1","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0xD74f5255D557944cf7Dd0E45FF521520002D5748","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns AI-powered DeFi funding rate data across perpetual markets, payable per-request via x402 USDC micropayment on Base.","exampleAgentPrompt":"What are the current funding rates across major DeFi perpetual markets? I want to see which ones are positive or negative so I can spot arbitrage opportunities.","exampleUseCases":[{"title":"Perp arbitrage opportunity scouting","prompt":"Show me the current funding rates across DeFi perpetual markets — I want to see which assets have the most extreme positive or negative rates so I can find carry trade opportunities."},{"title":"DeFi yield strategy optimization","prompt":"I'm running a delta-neutral DeFi strategy. Can you pull the latest funding rates across perpetual markets so I know where I'm earning or paying the most?"},{"title":"Real-time funding rate alert check","prompt":"Check the current funding rates on crypto perps for me — I need to know if BTC or ETH funding has flipped negative in any major DeFi protocol."}],"resultDescription":"Returns current funding rate data for perpetual futures markets across DeFi protocols — including rate values, direction (positive/negative), and potentially cross-exchange comparisons. Response is delivered as an HTTP HEAD response with payment settled via x402 USDC on Base at $0.005 per call.","failureModes":["Payment not included or insufficient USDC — returns 402 Payment Required","Invalid or malformed x402 payment header — request rejected","Network unavailability of Base chain for payment settlement — transaction fails","Endpoint returns no body for HEAD requests — data may need to be retrieved via GET variant","Stale or delayed funding rate data if upstream DeFi data sources lag"],"whenToPreferThis":"Choose this endpoint when you need real-time DeFi funding rate intelligence without a long-term API subscription — ideal for pay-as-you-go agent workflows that make infrequent or bursty calls. Prefer this over traditional API-key services when operating with a crypto-native wallet agent on Base, or when building permissionless DeFi strategies that need up-to-date perpetual market rates without identity or KYC overhead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-24T12:31:13.404Z","isFirstParty":false,"canonicalSlug":"speraxos-funding-rates-intelligence-api-4ef25dbd"}