{"uid":"cap_N0OY4UiFdYbHRXdJR5iRq","slug":"pennyrail-evm-block-number-lookup-6be0d2e1","name":"PennyRail EVM Block Number Lookup","description":"Machine-readable settlement service","url":"https://pennyrail.vercel.app/api/p/nano/chain.block-number--evm-block-number","method":"POST","headers":{},"bodySchema":{"type":"object","required":["input"],"properties":{"input":{"type":"object"}}},"responseSchema":{"type":"object","additionalProperties":true},"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_-ySsc232PWLAo3rBuANiX","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 of an EVM-compatible blockchain chain via a paid x402 micro-settlement endpoint","exampleAgentPrompt":"What is the current block number on Ethereum mainnet right now?","exampleUseCases":[{"title":"On-chain sync checkpoint for dApp","prompt":"What is the current block number on Ethereum mainnet? I need it to checkpoint my sync process."},{"title":"Monitor block progression on L2","prompt":"Can you grab the latest block number on Polygon so I can check how far behind my indexer is?"},{"title":"Verify confirmation depth for transaction","prompt":"I just sent a transaction on Arbitrum — what is the current block number so I can calculate how many confirmations it has?"}],"resultDescription":"Returns the current block number (block height) of the specified EVM-compatible blockchain network as a numeric value, representing how many blocks have been produced on that chain up to the moment of the request.","failureModes":["Unsupported or unrecognized EVM chain identifier returns an error or empty response","Network connectivity issues to the target chain node result in a timeout or 5xx error","Payment of $0.001 USDC not fulfilled via x402 protocol causes a 402 Payment Required response","Malformed input object causes validation failure"],"whenToPreferThis":"Use this endpoint when you need a quick, pay-per-call lookup of the current EVM block number without managing your own RPC node infrastructure. Ideal for agents that need occasional chain height checks without a persistent Web3 provider setup. Prefer over free RPC endpoints when reliability and micro-payment settlement via x402 are acceptable trade-offs.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:46:12.451Z","isFirstParty":false}