{"uid":"cap_BkkA-ZSjekcgWSIPXABox","slug":"synapse-api-latest-block-lookup-tempo-1113046e","name":"Synapse API — Latest Block Lookup (Tempo)","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/tempo/block/latest","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_PqLqqPsvd4o8RT6KRbg3R","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 latest block data from a blockchain network via the Tempo module of the Synapse API suite.","exampleAgentPrompt":"What is the latest block on Ethereum right now — can you fetch the current block number, hash, and timestamp for me?","exampleUseCases":[{"title":"Real-time block height monitoring","prompt":"Keep checking and tell me the latest block number on Ethereum every time I ask — I need to track how the chain is progressing."},{"title":"DeFi transaction confirmation check","prompt":"I just submitted a transaction and want to know what the current block is on the network so I can estimate when it might confirm."},{"title":"Blockchain analytics timestamp anchoring","prompt":"Can you pull the latest block data including timestamp so I can use it as a reference point for my on-chain event analysis?"}],"resultDescription":"Returns the latest block data from the targeted blockchain network, typically including block number (height), block hash, timestamp, and related metadata for the chain tip.","failureModes":["Network unavailable or blockchain node unreachable — returns error or timeout","Invalid or unsupported blockchain network specified — returns 400 or 422 error","Payment not completed via x402 — returns 402 Payment Required","Rate limiting or quota exceeded — returns 429 Too Many Requests","Empty body or missing required fields — returns validation error"],"whenToPreferThis":"Use this endpoint when you need a quick, pay-per-call lookup of the latest block on any of 57+ supported blockchain networks without maintaining your own node infrastructure. Prefer this over self-hosted RPC calls when operating in an agent context that supports x402 micropayments and needs broad multi-chain coverage with minimal setup.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-16T13:11:38.905Z","isFirstParty":false}