{"uid":"cap_GguRHVq32VoJScOTatc1T","slug":"speraxos-yield-vaults-data-api-80ef40a8","name":"SperaxOS Yield Vaults Data 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/v1/data/yield-vaults?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_shSCiz2YMg_0vVKbVFnjZ","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 DeFi yield vault listings and APY data from SperaxOS, payable per-request with USDC via x402","exampleAgentPrompt":"Show me the available yield vaults on SperaxOS — I want to see what's offering the best APY right now on Base so I can decide where to park my USDC.","exampleUseCases":[{"title":"Finding best stablecoin yield","prompt":"What yield vaults does Sperax currently have available, and which ones are paying the highest APY for USDC right now?"},{"title":"DeFi portfolio allocation research","prompt":"I'm trying to decide where to put my idle stablecoins — can you pull up all the active yield vaults from SperaxOS so I can compare their rates?"},{"title":"Automated yield monitoring for agent","prompt":"Check the SperaxOS yield vaults and tell me if any of them are currently offering above 8% APY so I can consider rebalancing."}],"resultDescription":"A list of available yield vaults on the Sperax platform, including vault identifiers, underlying assets, APY/yield rates, protocol details, and relevant vault metadata for DeFi decision-making.","failureModes":["Payment not included or insufficient USDC — returns HTTP 402 requiring x402 payment","Invalid or malformed properties filter parameter — may return empty results or 400 error","Vault data temporarily unavailable due to upstream DeFi protocol issues","Rate limiting if requests are sent too rapidly without valid payments","Network issues on Base chain affecting real-time vault data freshness"],"whenToPreferThis":"Choose this endpoint when you need current yield vault data specific to the Sperax/SperaxOS ecosystem on Base, especially if you want no API key overhead and are comfortable with per-request USDC micropayments via x402. Prefer this over generic DeFi aggregators when specifically researching Sperax-native vaults or when building agents that need pay-as-you-go DeFi intelligence without subscription commitments.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T12:32:53.877Z","isFirstParty":false,"canonicalSlug":"speraxos-yield-vaults-data-api-80ef40a8"}