{"uid":"cap_1sQWREuZLz-Ux9kk-5qC1","slug":"synapse-api-latest-block-lookup-adi-73c13c3f","name":"Synapse API — Latest Block Lookup (ADI)","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/adi/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_qhkPkI6enkrQmlgHVwVwm","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":"Retrieves the latest block data from a specified blockchain network via the ADI (Advanced Data Intelligence) endpoint","exampleAgentPrompt":"What is the latest block on the Ethereum network right now? Use the Synapse ADI block endpoint to fetch the current block data.","exampleUseCases":[{"title":"Monitor blockchain tip for alerting","prompt":"Keep checking the latest block on the Polygon network and let me know whenever a new block is produced so I can track chain activity."},{"title":"Verify chain liveness before transaction","prompt":"Before I submit my transaction, can you check the latest block on Ethereum to confirm the chain is live and producing blocks normally?"},{"title":"Log current block height for audit","prompt":"Fetch the latest block number and timestamp from the BNB Chain right now and log it so I have a record of the blockchain state at this moment."}],"resultDescription":"Returns the latest block information from the specified blockchain network, including block number, hash, timestamp, and related metadata for the chain tip.","failureModes":["Unsupported blockchain network returns an error or empty response","Malformed request body (missing required fields) returns a 400-level error","Payment not provided or insufficient USDC results in a 402 Payment Required response","Network or upstream blockchain node timeout returns a 5xx error","Rate limiting or quota exceeded returns a 429 error"],"whenToPreferThis":"Choose this endpoint when you need real-time latest block data across a wide range of blockchain networks (57+) without maintaining your own node infrastructure. It is especially useful for agents that need to check chain liveness, retrieve current block height, or anchor a timestamp to a specific block, particularly when paying per-call via x402 USDC is acceptable and you want multi-chain coverage from a single API.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:45:48.472Z","isFirstParty":false}