{"uid":"cap_A9i84aY1ZHueRkdj7tFXu","slug":"aether-base-block-lookup-0b44a9b2","name":"Aether Base Block Lookup","description":"Pay-per-call Base onchain data, token risk verdicts and x402 payability audits over x402 (USDC on Base).","url":"https://aether-x402.vercel.app/v1/base/block?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"block":{"type":["string","integer"]}}},"responseSchema":{"type":"json","example":{"number":"21000000","txCount":120,"timestamp":"1790000000"}},"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_qEiw-b_9EHA1mVhwzvtxY","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Retrieves metadata for a specific block on the Base blockchain, including block number, transaction count, and timestamp.","exampleAgentPrompt":"Can you pull the block data for block 21000000 on Base — I need the transaction count and timestamp for it?","exampleUseCases":[{"title":"Audit block activity for DeFi event","prompt":"Fetch the block details for block 21000000 on Base so I can see how many transactions happened and when that block was mined."},{"title":"Correlate onchain timestamp with offchain event","prompt":"I need the timestamp for Base block 20500000 — I want to confirm exactly when that block was produced to match it against an offchain log."},{"title":"Monitor block transaction volume","prompt":"Look up block 21500000 on Base and tell me the transaction count so I can track how busy the network was at that point."}],"resultDescription":"Returns a JSON object with the block number as a string, the transaction count (txCount) as an integer, and the block timestamp as a Unix epoch string for the requested Base blockchain block.","failureModes":["Invalid or non-existent block number returns an error or empty response","Block number too far in the future (not yet produced) returns not found","Malformed input type (wrong schema) returns a validation error","Payment failure via x402 protocol blocks the request before processing"],"whenToPreferThis":"Use this endpoint when you need fast, pay-per-call access to Base blockchain block metadata (block number, transaction count, timestamp) without setting up your own RPC node or managing API keys — especially in agent workflows that pay via USDC on Base using the x402 protocol.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T06:38:12.698Z","isFirstParty":false,"canonicalSlug":"aether-base-block-lookup-0b44a9b2"}