{"uid":"cap_ryklMHu9gDjCyFmjiZWDp","slug":"saylor-innovations-on-chain-lookups-arbitrum-latest-block-6b962844","name":"Saylor Innovations On-Chain Lookups — Arbitrum Latest Block","description":"EVM Block (arbitrum) — On-Chain Data","url":"https://saylorinnovations.com/api/evm/arbitrum/block/latest?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","POST","PUT","PATCH","DELETE","HEAD"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","required":["chain","number","hash"],"properties":{"hash":{"type":"string"},"time":{"type":"string"},"chain":{"type":"string"},"miner":{"type":"string"},"number":{"type":["number","null"]},"gas_used":{"type":["number","null"]},"tx_count":{"type":["number","null"]},"gas_limit":{"type":["number","null"]},"timestamp":{"type":["number","null"]},"base_fee_gwei":{"type":["number","null"]}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Rief0n9URTWTAfWLz49bi","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches the latest block data from the Arbitrum EVM chain, including block number, hash, timestamp, gas metrics, and transaction count.","exampleAgentPrompt":"What's the latest block on Arbitrum right now — give me the block number, hash, timestamp, and current base fee in gwei?","exampleUseCases":[{"title":"Real-time Arbitrum chain monitoring","prompt":"Keep an eye on the Arbitrum chain for me and tell me the latest block number and base fee gwei right now — I want to know if block production has stalled."},{"title":"Gas fee check before DeFi transaction","prompt":"Before I submit my transaction on Arbitrum, can you check the current base fee in gwei on the latest block so I know what gas costs look like?"},{"title":"Blockchain sync status verification","prompt":"Can you pull the most recent Arbitrum block number and timestamp so I can confirm my node is in sync with the chain head?"}],"resultDescription":"Returns a JSON object containing the latest Arbitrum block's chain name, block number, block hash, miner address, timestamp (Unix epoch), human-readable time, gas used, gas limit, transaction count, and base fee in gwei. Some fields may be null if not available.","failureModes":["Network or upstream RPC node unavailability returns an error or empty response","Arbitrum node lag may cause slightly stale block data","Missing or null numeric fields if the node is syncing","Payment not processed (x402 protocol failure) results in a 402 response with no data"],"whenToPreferThis":"Choose this endpoint when you need real-time Arbitrum latest block data — including gas metrics, tx count, and block hash — via a simple GET call with per-request x402 micropayment pricing. Prefer this over Ethereum or other EVM endpoints when specifically targeting Arbitrum Layer 2 chain state.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T04:32:18.154Z","isFirstParty":false,"canonicalSlug":"saylor-innovations-on-chain-lookups-arbitrum-latest-block-6b962844"}