{"uid":"cap_CUSUd1QdjZ8y_Rw67IBNu","slug":"fiatdock-base-block-head-d04a16f5","name":"FiatDock: Base Block Head","description":"Pay-per-call: Base Block Head","url":"https://fiatdock.com/s/svc_78d0f57e-c03d-4fee-b443-4d7529cfcfcb?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","required":[],"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_zYJsOn6QsJuvwfhV80Pq0","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 latest block number and timestamp for the Base blockchain chain head via a pay-per-call API.","exampleAgentPrompt":"What's the current block number and timestamp on Base right now — I need to verify how fresh my on-chain data is.","exampleUseCases":[{"title":"Freshness check before on-chain query","prompt":"Before pulling DeFi prices from Base, check what block we're currently at so I can verify the data isn't stale."},{"title":"Monitor Base chain liveness","prompt":"Every minute, check the latest Base block number and alert me if it hasn't advanced in over 2 minutes — I need to know if the chain is stalling."},{"title":"Sync verification for indexer","prompt":"What is the current Base chain-head block and its timestamp? I want to confirm my indexer is caught up to tip."}],"resultDescription":"Returns the latest block number and timestamp of the Base blockchain chain head, allowing agents to assess data freshness and chain liveness.","failureModes":["Network or upstream RPC unavailability returns an error response","Payment failure (insufficient USDC balance) blocks the call via x402 protocol","Malformed request may return a 4xx validation error","Temporary Base RPC lag may cause slightly stale block data"],"whenToPreferThis":"Use this endpoint when you need a lightweight, pay-per-call check of the Base chain head — especially for freshness validation, liveness monitoring, or confirming indexer sync state — without running your own node or managing RPC subscriptions.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-27T18:44:18.508Z","isFirstParty":false,"canonicalSlug":"fiatdock-base-block-head-d04a16f5"}