{"uid":"cap_-KPZeO1VX12LGYGwHUxaj","slug":"base-mainnet-block-number-rpc-75d9dbac","name":"Base Mainnet Block Number RPC","description":"Return the latest Base mainnet block number from a bounded public RPC fallback set.","url":"https://payne-machine-revenue-mcp.apayne1987.workers.dev/v1/base-block-number","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":{"properties":{}},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_mC_ZBaKfJpLb9v-22o5wu","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the latest block number on Base mainnet by querying a bounded set of public RPC fallback endpoints.","exampleAgentPrompt":"What is the latest block number on Base mainnet right now?","exampleUseCases":[{"title":"Monitor Base chain liveness","prompt":"Check the current block number on Base mainnet and alert me if it hasn't advanced in the last 5 minutes."},{"title":"Sync confirmation for dApp","prompt":"Before submitting this transaction, can you grab the current Base mainnet block number so I can use it as a reference point?"},{"title":"Blockchain data freshness check","prompt":"I need to know what block Base is currently at — fetch the latest block number from the mainnet RPC."}],"resultDescription":"Returns the current (latest) block number on Base mainnet as an integer, sourced from a bounded fallback set of public Base RPC endpoints.","failureModes":["All RPC fallback endpoints unavailable — service returns error","Network timeout from upstream Base RPC nodes","Stale block number if fallback nodes are lagging","Invalid or missing input body causing 400-level error","Payment not accepted — 402 if USDC payment header is missing or malformed"],"whenToPreferThis":"Use this endpoint when you need a quick, low-cost lookup of the current Base mainnet block height without managing your own RPC node or API key. Ideal for agents needing a lightweight chain-tip reference for confirmation windows, freshness checks, or sequencing logic on Base L2.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:31:03.468Z","isFirstParty":false}