{"uid":"cap_GuHyBUt26huHKHgCe6VXE","slug":"speraxos-helius-defi-data-api-44e1533a","name":"SperaxOS Helius DeFi 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/helius?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"allOf":{"type":"string"},"properties":{"type":"string"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_S0Lj7MxF6o-iJZhHRHVrb","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0xD74f5255D557944cf7Dd0E45FF521520002D5748","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches AI-powered DeFi intelligence data from Helius (Solana blockchain data) via the x402 pay-per-request protocol using USDC on Base","exampleAgentPrompt":"Pull the recent DeFi transaction history for Solana wallet 7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU using the SperaxOS Helius endpoint — pay the $0.001 USDC fee per request.","exampleUseCases":[{"title":"Solana wallet activity audit","prompt":"Show me the recent on-chain transaction history for Solana address 9WzDXwBbmkg8ZTbNMqUxvQRAyrZzDsGYdLVL9zYtAWWM — I want to see what DeFi activity has happened there."},{"title":"Token transfer tracking for DeFi","prompt":"Fetch all token transfers involving mint address EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v from the SperaxOS Helius data API so I can track USDC movements on Solana."},{"title":"No-API-key Solana data lookup","prompt":"I need Helius Solana blockchain data for account Fg6PaFpoGXkYsidMpWTK6W2BeZ7FEfcYkg476zPFsLnS without signing up for a Helius API key — just pay per request with USDC."}],"resultDescription":"Returns structured Solana/DeFi blockchain data sourced from Helius infrastructure, such as parsed transaction histories, token balances, account details, or NFT metadata, depending on query parameters passed. Response is JSON containing on-chain data fields relevant to the queried entity.","failureModes":["Payment not included or insufficient USDC — returns HTTP 402 Payment Required","Invalid or malformed Solana address/signature — returns 400 Bad Request","Helius upstream outage — returns 503 or timeout","Rate limit exceeded even with payment — returns 429","Missing required query parameters — returns 400 with parameter error"],"whenToPreferThis":"Choose this endpoint when you need Solana/Helius blockchain data without committing to a Helius API key subscription, prefer pay-per-request micropayment billing via x402 USDC on Base, or are building an AI agent that dynamically queries on-chain DeFi data only when needed. It is best suited for low-frequency, on-demand Solana data lookups where per-call cost ($0.001 USDC) is acceptable over a monthly subscription.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T18:55:26.779Z","isFirstParty":false,"canonicalSlug":"speraxos-helius-defi-data-api-44e1533a"}