{"uid":"cap_HrUgB3tCuzN_OAWIsW50J","slug":"synapse-api-ethereum-latest-block-lookup-423502be","name":"Synapse API — Ethereum Latest Block Lookup","description":"High-speed API suite for AI processing, web scraping, and smart data utilities across 57+ blockchain networks. Pay-per-call via x402.","url":"https://synapse-api-brown.vercel.app/api/ethereum/block/latest?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","properties":{},"additionalProperties":false},"type":{"type":"string","const":"http"},"method":{"enum":["POST","PUT","PATCH"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Dbi8-n4L2hPBN-sIzWkyu","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches the most recent block data from the Ethereum blockchain via a pay-per-call API.","exampleAgentPrompt":"What is the latest Ethereum block number and its timestamp right now?","exampleUseCases":[{"title":"Real-time Ethereum block monitoring","prompt":"Keep me posted on the current Ethereum block number — I want to know the latest block height and when it was mined."},{"title":"On-chain event timing verification","prompt":"I need to verify whether a transaction could have been included in the latest Ethereum block — can you pull the most recent block data including its timestamp and transaction count?"},{"title":"DApp synchronization checkpoint","prompt":"My app needs to sync with the Ethereum network — fetch the latest block so I can use its hash and number as a checkpoint."}],"resultDescription":"Returns data about the most recently mined Ethereum block, including the block number, hash, timestamp, transaction list or count, miner address, gas used, and other standard Ethereum block fields.","failureModes":["Network or node unavailability causing a 503 or timeout","Payment failure or insufficient USDC balance returning a 402 response","Rate limiting if too many requests are made in quick succession","Stale or slightly delayed block data due to node sync lag","Malformed request body causing a 400 validation error"],"whenToPreferThis":"Use this endpoint when you need a quick, pay-per-call lookup of the latest Ethereum block without maintaining your own Ethereum node or paying for a full RPC subscription. Ideal for lightweight agents that only need occasional block queries and want to pay in USDC micro-transactions via x402.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T12:50:40.202Z","isFirstParty":false,"canonicalSlug":"synapse-api-ethereum-latest-block-lookup-423502be"}