{"uid":"cap_IstZYdE87MvX5aYKnB1b7","slug":"base-address-intelligence-unified-profile-9ab0ce3b","name":"Base Address Intelligence (Unified Profile)","description":"One call for an address on Base: USDC balance, ETH balance, verified primary Basename, transaction count (nonce) and whether it is a contract. Use it to profile a counterparty or payout wallet before interacting. Replaces four or five separate reads with a single priced request. Query: ?address=0x...","url":"https://89-116-220-218.sslip.io/base/address-intel?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":["address"],"properties":{"address":{"type":"string","pattern":"^0x[0-9a-fA-F]{40}$","description":"Base address to profile (0x + 40 hex chars)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"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_5Ip6xcEy_JONtIolyaQNX","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":"Returns a unified profile for a Base address including USDC balance, ETH balance, primary Basename, transaction count (nonce), and contract detection in a single call.","exampleAgentPrompt":"Can you give me a full profile of the Base wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 — I need the ETH and USDC balances, whether it's a contract, its Basename if it has one, and how many transactions it's done?","exampleUseCases":[{"title":"Vet a counterparty before payment","prompt":"Before I send 500 USDC to 0xAbCd1234567890AbCd1234567890AbCd12345678 on Base, can you check their wallet — is it a real account with some history, what are their balances, and do they have a Basename?"},{"title":"Verify a payout wallet in a workflow","prompt":"I need to confirm that 0x1111222233334444555566667777888899990000 on Base is a valid recipient — check if it's a contract, how many transactions it's made, and what its ETH and USDC balances are."},{"title":"Research a DeFi protocol address","prompt":"Can you profile the Base address 0xDeAdBeEf00000000000000000000000000000001 for me — I want to know if it's a smart contract, its Basename, transaction count, and current balances?"}],"resultDescription":"A single JSON response containing: USDC balance (as a formatted amount), ETH balance, the verified primary Basename (if set), total transaction count (nonce), and a boolean flag indicating whether the address is a smart contract or an externally owned account (EOA).","failureModes":["Invalid address format (not 0x + 40 hex chars) returns a validation error","Address with no on-chain activity returns zero balances and null Basename","RPC node unavailability may cause timeout or 5xx error","Payment failure or insufficient USDC for the $0.01 fee blocks the request via x402 flow"],"whenToPreferThis":"Use this endpoint when you need multiple data points about a Base address (balances, Basename, nonce, contract status) in a single request, rather than making four or five separate RPC calls or API lookups. It is ideal for pre-interaction due diligence on counterparty or payout wallets on Base mainnet, and saves latency and cost compared to chaining individual endpoints.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T13:11:17.506Z","isFirstParty":false,"canonicalSlug":"base-address-intelligence-unified-profile-9ab0ce3b"}