{"uid":"cap_EQG0u_2mPAXxzeq161yl0","slug":"wickedapi-chain-block-header-lookup-318cf338","name":"WickedAPI Chain Block Header Lookup","description":"Block header lookup: number, hash, timestamp, miner, tx count, gas used/limit and base fee. Latest by default, or any block number, safe or finalized.","url":"https://api.wickedapi.com/v1/chain-block?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},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"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_a2ruMnaJo_NcfoPE96917","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 block header data (number, hash, timestamp, miner, tx count, gas used/limit, base fee) for the latest, safe, finalized, or any specific Ethereum block.","exampleAgentPrompt":"Can you pull up the block header for the latest finalized Ethereum block — I need the block number, timestamp, miner, gas used, gas limit, and base fee?","exampleUseCases":[{"title":"Monitor real-time Ethereum block production","prompt":"What's the current Ethereum block number and when was it mined? I want to keep an eye on how fast blocks are coming in."},{"title":"Audit gas usage for a specific block","prompt":"Can you look up block 19500000 on Ethereum and tell me the gas used versus the gas limit, plus the base fee?"},{"title":"Verify finalized chain state","prompt":"Fetch the finalized Ethereum block header for me — I need the hash, block number, and timestamp to confirm the chain has settled past a certain point."}],"resultDescription":"Returns a block header object containing the block number, hash, timestamp, miner address, transaction count, gas used, gas limit, and base fee for the requested block (defaulting to the latest block if no block number or tag is specified).","failureModes":["Invalid block number returns an error or empty response","Block number beyond current chain height returns not-found error","Network connectivity issues may cause timeouts","Rate limiting if too many calls are made in quick succession"],"whenToPreferThis":"Use this endpoint when you need lightweight block header metadata (number, hash, timestamp, miner, gas stats, base fee) without full transaction or receipt data. Prefer it over full block RPC calls when you only need header-level on-chain context, especially for monitoring, auditing, or anchoring timestamps to block data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-27T18:58:42.946Z","isFirstParty":false,"canonicalSlug":"wickedapi-chain-block-header-lookup-318cf338"}