{"uid":"cap_Bnk1V0kGNI-VVB2IMbqoz","slug":"mint-intel-base-block-number-ccf06f2a","name":"Mint Intel: Base Block Number","description":"Latest Base block height - current chain tip via eth_blockNumber (cached <=1 s). The cheapest liveness / clock tick for Base agents.","url":"https://mintintel.35-171-220-195.sslip.io/v1/base/block-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"],"type":"string"},"queryParams":{"type":"object","properties":{},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["chainId","blockNumber"],"properties":{"chainId":{"type":"integer"},"blockNumber":{"type":"integer"}}}}}}},"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_SKfisB-2WXkaJ6kcpS6ee","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 height (chain tip) of the Base blockchain via eth_blockNumber, with sub-1-second caching.","exampleAgentPrompt":"What's the current block number on the Base blockchain right now?","exampleUseCases":[{"title":"Liveness check for Base agent","prompt":"Can you confirm that the Base blockchain is still producing blocks and tell me the current block height?"},{"title":"Onchain clock tick for automation","prompt":"I need the latest Base block number to use as a timestamp anchor for my scheduled onchain task — can you grab it?"},{"title":"Sync lag monitoring","prompt":"Fetch the current Base block number so I can compare it against the last block I processed and see how far behind my indexer is."}],"resultDescription":"A JSON object containing the Base chain ID (integer) and the current block number (integer) representing the latest confirmed block at the time of the call, cached for up to 1 second.","failureModes":["Upstream RPC node unreachable — returns 5xx error","Stale cache if Base experiences a block production halt — block number may lag real tip by up to 1 second","Rate limiting if call volume exceeds plan — returns 429","Payment not fulfilled — returns 402 with payment details"],"whenToPreferThis":"Use this endpoint when you need the cheapest, fastest liveness signal or chain-tip reference for Base. It requires no input parameters and returns in real time, making it ideal for polling loops, health checks, or timestamp anchoring in Base-native agent workflows. Prefer this over full block-detail endpoints when you only need the block number, not transaction data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:40:01.997Z","isFirstParty":false,"canonicalSlug":"mint-intel-base-block-number-ccf06f2a"}