{"uid":"cap_c6MqT3HcM3ntxb0wQwAFZ","slug":"pulsescanner-head-preview-lane-blocks-4edc1fe3","name":"PulseScanner Head Preview Lane Blocks","description":"Blocks from the head preview lane, ahead of the indexed head. PulseChain (chain id 369). $0.003 USDC per call.","url":"https://x402.pulsescanner.io/v2/head/blocks?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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"},"headers":{"type":"object","additionalProperties":{"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":"0.003","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_sAFpw2y92EkDRNhIfT5Z6","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":"Returns blocks from the head preview lane (ahead of the indexed head) on the PulseChain network (chain id 369)","exampleAgentPrompt":"Can you pull the latest blocks from PulseChain's head preview lane — the ones ahead of the indexed head — so I can see what's at the very tip of the chain right now?","exampleUseCases":[{"title":"Real-time PulseChain tip monitoring","prompt":"Show me the current blocks in PulseChain's head preview lane so I can see what's happening at the leading edge of the chain before it's indexed."},{"title":"Pre-index block validation check","prompt":"Fetch the latest PulseChain preview head blocks — I want to verify what new blocks are coming in before the indexer catches up."},{"title":"Blockchain analytics pipeline ingestion","prompt":"Grab the newest blocks from the PulseChain head preview lane for chain id 369 so I can feed them into my analytics pipeline as soon as they appear."}],"resultDescription":"A list of block objects from PulseChain's head preview lane, representing blocks that are ahead of the currently indexed head. Each block likely includes block number, hash, timestamp, proposer, and other block-level metadata specific to PulseChain (chain id 369).","failureModes":["No blocks available in the preview lane if the chain tip is not advancing","Payment failure if the x402 USDC payment of $0.003 is not fulfilled","Rate limiting or authentication errors if payment headers are missing","Network timeout if PulseChain node is temporarily unreachable","Empty response if the head preview lane has no blocks ahead of the indexed head at query time"],"whenToPreferThis":"Use this endpoint when you need the very latest PulseChain blocks that have not yet been indexed — ideal for real-time monitoring of the chain tip, latency-sensitive analytics, or detecting new blocks as soon as they appear. Prefer this over standard block endpoints when you specifically need pre-index, leading-edge block data on PulseChain (chain id 369).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:20:47.034Z","isFirstParty":false,"canonicalSlug":"pulsescanner-head-preview-lane-blocks-4edc1fe3"}