{"uid":"cap_a0Qgq04BESz83yIAlCi1V","slug":"base-mainnet-eth-usdc-balance-checker-a61a7163","name":"Base Mainnet ETH & USDC Balance Checker","description":"Live Base mainnet ETH and USDC balances for an address — treasury and agent wallet checks","url":"https://vending-machine-seven.vercel.app/api/v/base-balance","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":{"enum":["GET"],"type":"string"},"pathParams":{"type":"object"},"queryParams":{"type":"object","required":["address"],"properties":{"address":{"type":"string","description":"0x EVM address on Base"}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"ok":{"type":"boolean"},"eth":{"type":"string"},"usdc":{"type":"string"},"chain":{"type":"string"},"source":{"type":"string"},"service":{"type":"string"}}}}}}},"responseSchema":null,"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_IbFeDFqLXTkyMslktoYiH","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 live ETH and USDC balances for a given EVM address on the Base mainnet blockchain","exampleAgentPrompt":"Can you check the live ETH and USDC balances on Base mainnet for the wallet address 0x4f3edf983ac636a65a842ce7c78d9aa706d3b113?","exampleUseCases":null,"resultDescription":"Returns a JSON object with fields: ok (boolean success flag), eth (ETH balance as string), usdc (USDC balance as string), chain (network identifier, e.g. 'base'), source (data source), and service (service name).","failureModes":["Invalid or malformed 0x address returns an error response","Address not found on Base mainnet may return zero balances","RPC or node connectivity issues may cause lookup failures","Missing required 'address' query parameter returns a validation error","Non-EVM address format (e.g. ENS name without resolution) rejected"],"whenToPreferThis":"Use this endpoint when you need real-time ETH and USDC balances specifically on the Base mainnet network for treasury management, agent wallet funding checks, or pre-payment verification. Prefer this over generic multi-chain balance tools when Base-specific live data is required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:40:15.054Z","isFirstParty":false}