{"uid":"cap_MEpeRMDxsAMgDy-UTvcWX","slug":"verifyoracle-base-mainnet-block-number-oracle-e99a08ce","name":"VerifyOracle — Base Mainnet Block Number Oracle","description":"Primary-source verifiable x402 API oracle on Base Mainnet USDC.","url":"https://penger-oracle.run402.com/api/block-number?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"source":"base-mainnet-rpc","chainId":8453,"network":"base-mainnet","txCount":142,"blockHash":"0x...","timestamp":1761052500,"blockNumber":25000000}},"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_S59cym5R4d-f_BZGhJ4fW","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":"Returns the current block number and associated metadata (hash, timestamp, tx count) from Base Mainnet (chainId 8453) via direct RPC query.","exampleAgentPrompt":"What's the current block number on Base Mainnet right now — give me the block hash and timestamp too?","exampleUseCases":[{"title":"Real-time blockchain height check","prompt":"Can you tell me the current block number on Base Mainnet and when that block was mined?"},{"title":"On-chain state verification for dApp","prompt":"I need to verify the latest Base Mainnet block number, its hash, and how many transactions it contained — pull that directly from the chain."},{"title":"Monitoring Base chain liveness","prompt":"Is Base Mainnet still producing blocks? Fetch the latest block number and timestamp so I can confirm the chain is live and moving."}],"resultDescription":"A JSON object containing: blockNumber (current Base Mainnet block height as integer), blockHash (0x-prefixed hash string), timestamp (Unix epoch of the block), txCount (transaction count in the block), chainId (8453), network ('base-mainnet'), and source ('base-mainnet-rpc').","failureModes":["RPC node unavailability may return a 503 or timeout","Payment verification failure (x402 payment not confirmed) returns 402","Malformed or missing USDC payment header causes rejection","Transient Base RPC latency may cause delayed or stale responses"],"whenToPreferThis":"Choose this endpoint when you need a verifiably sourced, payment-gated current block number from Base Mainnet (chainId 8453) with accompanying metadata (hash, timestamp, tx count) rather than relying on a free or unauthenticated RPC. Ideal for agents needing cryptographically auditable on-chain state snapshots with provenance guarantees via x402.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-27T12:50:19.662Z","isFirstParty":false,"canonicalSlug":"verifyoracle-base-mainnet-block-number-oracle-e99a08ce"}