{"uid":"cap_1KbtrIrdTmFTmwat3rsAF","slug":"ethereum-mainnet-block-by-number-eth-getblockbynumber-a8bc0f45","name":"Ethereum Mainnet Block by Number (eth_getBlockByNumber)","description":"ARYSPHERE sells AI-written verdicts on Base token contracts (a grade, a one-liner, a roast and the contract's facts) and Base/Ethereum chain reads, paid per call in USDC on Base over x402 v2. No account and no API key.","url":"https://api.arysphere.com/v1/ventures/x402_eth_reads_v1/eth_mainnet_eth_get_block_by_number?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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"block":{"type":"string","description":"a block number, or 'latest'"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"ok":true,"chain":"ethereum","method":"eth_getBlockByNumber","result":{"hash":"0x7538fe3a3bb34856c428edf3a6987a3f65c62e420473a509e0ef6e6446aac74b","size":"0x1d1af","miner":"0x4838b106fce9647bdf1e7877bf73ce8b0bad5f97","nonce":"0x0000000000000000","number":"0x18f1ab8","uncles":[],"gasUsed":"0x169e64a","mixHash":"0xae6149f7ce26ec6622dcee60ac3581ec58f376c6e617344d5d26fa6c79fcd84f","gasLimit":"0x3938700","extraData":"0x546974616e2028746974616e6275696c6465722e78797a29","logsBloom":"0x51ef0f6b5db85bb77c3f1b4de1e5dfafd5fedf65f45c753c161735b56e9beff5dc2cc73aa3bc2fafb97e7b917abf7dddc76b513d9f67ef73dfff2ff2bfefe4db7379d7e11ef186fae93b772fb47b47ffeee47771edfe1bba7176649acf657edef630646aa6ce2a61faf7faf32e606cc7dbffc2be70d6b6","stateRoot":"0xafc5c4791f953764c1240c4605600bffa650467910ff793a6ad44a44ec5bcdad","timestamp":"0x6ac905e3","difficulty":"0x0","parentHash":"0x49c6e74104654981bc3d21e12e9df6dcb4fad59c775948d9c43ecc662dbbeebe","sha3Uncles":"0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347","blobGasUsed":"0x140000","receiptsRoot":"0xd4d60719e4ba28f68eb398a5d861d44bfdb8a171742a756e0dbcc50250136183","requestsHash":"0xe3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855","baseFeePerGas":"0x206e2cc9","excessBlobGas":"0xc0db577","withdrawalsRoot":"0x58b153ac66ecab07f3a899101e5e839985a01f22419ae16886f5321840808584","transactionsRoot":"0xc00956eb9e6da8da2db4d3a68333bf790f6fb92471b67121666f3a739a0b9e6c","parentBeaconBlockRoot":"0x0a477cb0499fc7f2a7d288b176f58f017ce1fc816648df3df102066289a3a962"},"service":"x402_chain_reads_v1.eth_getblockbynumber"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_et7rsMa9opWOC9eIco8me","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches a specific Ethereum mainnet block by block number or 'latest' via eth_getBlockByNumber","exampleAgentPrompt":"What are the details of the latest Ethereum mainnet block — give me the hash, miner, gas used, timestamp, and base fee?","exampleUseCases":[{"title":"Monitor latest Ethereum block activity","prompt":"Can you fetch the latest Ethereum mainnet block and tell me the block number, miner, gas used, and base fee per gas?"},{"title":"Look up historical block by number","prompt":"I need the full details of Ethereum mainnet block number 26,418,616 — including the hash, timestamp, state root, and transactions root."},{"title":"Audit gas usage for a specific block","prompt":"Pull up Ethereum block 0x18f1ab8 and tell me how much gas was used versus the gas limit, and what the base fee per gas was."}],"resultDescription":"Returns a JSON object with ok=true, chain='ethereum', method='eth_getBlockByNumber', and a result object containing the full block header: hash, number, miner, nonce, gasUsed, gasLimit, timestamp, baseFeePerGas, blobGasUsed, excessBlobGas, stateRoot, parentHash, transactionsRoot, receiptsRoot, withdrawalsRoot, logsBloom, extraData, mixHash, sha3Uncles, difficulty, size, uncles, and parentBeaconBlockRoot.","failureModes":["Invalid block number format returns an error","Block number ahead of chain tip returns null result","Network congestion may cause slow response","Malformed or missing 'block' parameter causes bad request","Service unavailable if Ethereum node is down"],"whenToPreferThis":"Use this endpoint when you need detailed Ethereum mainnet block header data — including miner, gas metrics, timestamps, state root, and fee info — for a specific block number or the latest block. Prefer this over general Web3 RPC providers when you need a simple pay-per-call HTTP GET with no node setup, API key management, or rate-limit negotiation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-17T12:40:57.753Z","isFirstParty":false,"canonicalSlug":"ethereum-mainnet-block-by-number-eth-getblockbynumber-a8bc0f45"}