{"uid":"cap_9e4Hb42zsDbhBZ7X6zJuQ","slug":"speraxos-etf-flows-intelligence-api-5d9991b2","name":"SperaxOS ETF Flows 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/etf-flows?utm_source=zero.xyz","method":"GET","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_qwohcKUd4TdQfwnAX3mZK","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 intelligence on ETF (exchange-traded fund) capital flow data, payable per-request via x402 USDC on Base","exampleAgentPrompt":"Pull the latest ETF capital flow data from SperaxOS — I want to see which crypto ETFs are seeing the biggest inflows and outflows right now.","exampleUseCases":[{"title":"Daily ETF flow briefing for crypto portfolio","prompt":"Give me a summary of today's ETF capital flows in crypto — which funds are getting the most inflows and which are bleeding outflows?"},{"title":"Research ETF trends for DeFi investment thesis","prompt":"I'm researching DeFi investment trends — can you pull the latest ETF flow data from SperaxOS so I can see where institutional capital is moving?"},{"title":"Alert on unusual ETF flow activity","prompt":"Check the current ETF flows data and let me know if there's anything unusual or notable happening with crypto ETF capital movements today."}],"resultDescription":"Returns AI-analyzed ETF capital flow data including inflow/outflow metrics, fund-level breakdowns, and DeFi intelligence signals derived from on-chain and market data. Response is delivered as structured JSON after a $0.005 USDC x402 micropayment on Base.","failureModes":["Payment not provided or insufficient — 402 Payment Required returned","Invalid or malformed query properties in request body","Upstream data unavailability causing empty or partial response","Rate limiting or network errors from the x402 payment facilitator","Wallet lacks funds for micropayment, blocking access"],"whenToPreferThis":"Choose this endpoint when you need real-time or recent ETF capital flow intelligence in the DeFi/crypto space without committing to a subscription API key. Ideal for AI agents that need pay-per-call access to institutional-grade ETF flow data using USDC micropayments on Base via the x402 protocol.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-18T18:48:39.567Z","isFirstParty":false,"canonicalSlug":"speraxos-etf-flows-intelligence-api-5d9991b2"}