{"uid":"cap_ZEEGnbRPakWSi7lHGtQGL","slug":"base-network-rpc-health-check-e470ea76","name":"Base Network RPC Health Check","description":"Which public Base network RPC endpoints are healthy right now: each one's latest block, how far behind the freshest it is, and response time. Pick a fast, in-sync node before you send.","url":"https://manylives.me/paid/chain/rpc-health?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":{"type":"string","const":"GET"},"queryParams":{"type":"object","required":[],"properties":{"max_lag":{"type":"string","examples":["3"],"description":"optional, blocks behind still counted healthy (default 3)"}}}}},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","properties":{"tip":{"type":"number"},"endpoints":{"type":"array","items":{"type":"object","properties":{"ms":{"type":"number"},"url":{"type":"string"},"block":{"type":"number"},"behind":{"type":"number"},"healthy":{"type":"boolean"}}}}}}}}}},"responseSchema":{"type":"json","example":{"tip":52300000,"endpoints":[{"ms":80,"url":"https://…","block":52300000,"behind":0,"healthy":true}]}},"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_N3c3dKcuBaO3j8wvIGDne","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 health status, latest block, lag, and response time for all public Base network RPC endpoints so you can pick the fastest in-sync node.","exampleAgentPrompt":"Before I send this transaction on Base, check all the public Base RPC endpoints and tell me which ones are healthy, how far behind each is, and which is the fastest — I want to pick a good node to use.","exampleUseCases":[{"title":"Pre-transaction RPC selection","prompt":"I'm about to submit a transaction on Base mainnet — check all the public RPC endpoints and tell me which are in sync and which has the lowest response time so I know which one to route through."},{"title":"Monitoring Base node health","prompt":"Set up a check of the Base network public RPCs and alert me if any of them fall more than 5 blocks behind the chain tip."},{"title":"Debugging stale blockchain data","prompt":"My app is reading old state from Base — can you check all the public Base RPCs and tell me which ones are lagging behind so I can figure out which node to switch away from?"}],"resultDescription":"Returns the current chain tip block number, plus a list of all public Base RPC endpoints each with their URL, latest block observed, number of blocks behind the tip, response time in milliseconds, and a boolean healthy flag. Optionally filtered by a configurable max_lag threshold (default 3 blocks).","failureModes":["All endpoints may be reported as unhealthy if the Base network is experiencing widespread issues","Transient network timeouts during the health probe may cause some endpoints to appear slower than usual","Stale results if called during a period of rapid chain tip advancement","Invalid max_lag parameter value may result in an error or defaulting to 3 blocks","Some RPC endpoints may be temporarily unreachable, reducing the list returned"],"whenToPreferThis":"Use this endpoint when you need to programmatically select the best Base network RPC before sending transactions or reading on-chain data — especially when you want a live, multi-endpoint comparison rather than hardcoding a single RPC URL. Prefer this over manual node selection or generic blockchain status pages when you need latency and block-lag data together in one call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:40:53.207Z","isFirstParty":false,"canonicalSlug":"base-network-rpc-health-check-e470ea76"}