{"uid":"cap_7krCMiw5DbPyHhltNNH0e","slug":"base-mainnet-wallet-summary-92c0b83f","name":"Base Mainnet Wallet Summary","description":"Pay-per-call data tools for agents, paid in USDC on Base via x402.","url":"https://grizzly-x402.onrender.com/base/wallet?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":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["address"],"properties":{"address":{"type":"string","description":"0x address on Base"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"eth":{"type":"string"},"block":{"type":"integer"},"chain":{"type":"string"},"tokens":{"type":"object","additionalProperties":{"type":"string"}},"address":{"type":"string"},"txCount":{"type":"integer"},"isContract":{"type":"boolean"}}}}}}},"responseSchema":{"type":"json","example":{"eth":"0.002","block":36000000,"chain":"base","tokens":{"USDC":"4.915"},"address":"0x14DB9C09870b2acf1dc47aF68BBbBC53220D90f1","txCount":3,"isContract":false}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_HvS2u7PSW3ATYUoA1Zx9n","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a summary of a Base mainnet wallet address including ETH, USDC, WETH, cbBTC, and DAI balances, transaction count, and whether the address is an EOA or smart contract","exampleAgentPrompt":"What are the ETH, USDC, WETH, cbBTC, and DAI balances for the Base wallet 0x4838B106FCe9647Bdf1E7877BF73cE8B0BAD5f97, and is it a regular wallet or a smart contract?","exampleUseCases":[{"title":"DeFi portfolio audit on Base","prompt":"Can you pull up the full token balances — ETH, USDC, WETH, cbBTC, and DAI — for Base wallet 0xAbCd1234...5678 and tell me if it's a regular wallet or a contract?"},{"title":"Verify onboarding wallet has funds","prompt":"Check if the Base address 0x1111222233334444555566667777888899990000 has any USDC or ETH before we send the next payment to it."},{"title":"Smart contract vs EOA detection","prompt":"I need to know whether 0xdEAD000000000000000042069420694206942069 on Base is a regular user wallet or a deployed smart contract, and show me its transaction count."}],"resultDescription":"Returns a structured wallet summary for the queried Base mainnet address, including individual token balances (ETH, USDC, WETH, cbBTC, DAI), the total number of transactions the address has sent or received, and a flag indicating whether the address is an externally owned account (EOA) or a deployed smart contract.","failureModes":["Invalid or malformed 0x address returns an error","Address not found on Base mainnet may return zero balances","Rate limiting or payment failure (402) if x402 micropayment not processed","Network timeouts if Base RPC is congested","Missing required 'address' query parameter returns a 400-style error"],"whenToPreferThis":"Use this endpoint when you need a quick, multi-token balance snapshot for any Base mainnet address without setting up your own RPC connection. It is ideal for agents that need to check wallet health, verify funding, or distinguish EOA from contract addresses on Base in a single call. Prefer this over general Ethereum endpoints when the target chain is specifically Base mainnet and you want USDC, WETH, cbBTC, and DAI balances returned together with the ETH balance in one response.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-28T06:34:04.309Z","isFirstParty":false,"canonicalSlug":"base-mainnet-wallet-summary-92c0b83f"}