{"uid":"cap_hmU--w2-rEuVJ0glR4Bnp","slug":"santyvv-data-on-chain-logs-api-e5ee3fc9","name":"santyvv-data On-Chain Logs API","description":"Market and on-chain data, paid per call in USDC on Base through the x402 protocol. No accounts, no API keys. Sources are public data providers; the value added here is keyless access, edge caching, multi-source fallback and normalised responses.","url":"https://x402.santyvv.com/api/chain/logs?utm_source=zero.xyz","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}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_dgvvM0F5hWLulTW_t0xT2","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches on-chain event logs from blockchain networks, paid per call in USDC via x402 with no API key required.","exampleAgentPrompt":"Pull the on-chain event logs for the USDC contract on Base — no API key needed, just pay per call — and show me what events fired in the last 100 blocks.","exampleUseCases":[{"title":"Monitor DeFi protocol activity","prompt":"Fetch the latest on-chain event logs for the Uniswap V3 pool contract on Base so I can see all swap events from the last 50 blocks."},{"title":"Audit ERC-20 token transfers","prompt":"Get me the on-chain transfer event logs for the USDC contract on Base for blocks 12000000 to 12000500 — I want to see all Transfer events without setting up an API key."},{"title":"Debug smart contract events","prompt":"Can you pull the on-chain logs for my deployed contract at address 0xABC...123 on Base so I can verify that the right events were emitted in the last 10 blocks?"}],"resultDescription":"Returns normalized on-chain event log entries from the queried blockchain, including event topics, transaction hashes, block numbers, contract addresses, and decoded log data where available. Response is edge-cached and aggregated from multiple public RPC providers for reliability.","failureModes":["Invalid or unsupported chain identifier returns 400 error","Payment not received or insufficient USDC results in 402 Payment Required","No logs found for the given block range or contract returns empty result set","Rate limiting or upstream provider unavailability returns 503 or timeout","Malformed query parameters return schema validation error"],"whenToPreferThis":"Choose this endpoint when you need on-chain event logs from an EVM-compatible chain without managing API keys or setting up accounts. Ideal for AI agents that need pay-as-you-go blockchain data access using USDC micropayments via the x402 protocol. Prefer over free-tier RPC endpoints when you need multi-source fallback, edge-cached responses, and normalized output format without rate-limit concerns tied to an account.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T18:40:10.549Z","isFirstParty":false,"canonicalSlug":"santyvv-data-on-chain-logs-api-e5ee3fc9"}