{"uid":"cap_rK2rof1OYdihbCkMvuPw9","slug":"base-reads-address-intelligence-0c36185b","name":"Base Reads – Address Intelligence","description":"Pay-per-call read API for Base over x402 v2. Deterministic data, no advice.","url":"https://base-reads-api.rafliyaputra.deno.net/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":{"type":"json","example":{"eth":0.25,"usdc":12.5,"block":36000000,"chain":"base","address":"0x2211d1d0020daea8039e46cf1367962070d77da9","tx_count":42,"is_contract":false,"primary_basename":"jesse.base.eth"}},"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_AGwGhQSjQCir5TdtyBsdP","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":"Looks up on-chain profile data for a Base blockchain address, returning ETH/USDC balances, transaction count, contract status, and primary Basename.","exampleAgentPrompt":"Can you pull up the on-chain profile for Base address 0x2211d1d0020daea8039e46cf1367962070d77da9 — I want to see their ETH and USDC balances, transaction count, whether it's a contract, and their Basename if they have one.","exampleUseCases":[{"title":"Due diligence on a Base wallet","prompt":"Before I send payment to 0xAbCd1234abcd1234abcd1234abcd1234abcd1234 on Base, can you check if it's a real wallet or a smart contract, and tell me its transaction history and current ETH balance?"},{"title":"Resolve a Basename to profile data","prompt":"I have the Base address 0x2211d1d0020daea8039e46cf1367962070d77da9 — can you tell me if it has a Basename registered, its USDC balance, and how active it's been on-chain?"},{"title":"Wallet screening for airdrop eligibility","prompt":"Check the on-chain stats for Base address 0xDEADbeefDEADbeefDEADbeefDEADbeefDEADbeef — I need its transaction count and whether it's a contract to decide if it qualifies for our airdrop."}],"resultDescription":"Returns a JSON object with: ETH balance (float), USDC balance (float), latest block number seen, chain name ('base'), the queried address, total transaction count, a boolean indicating if it is a smart contract, and the primary Basename (ENS-style name) if one is registered.","failureModes":["Invalid address format (not 0x + 40 hex chars) returns a validation error","Address has no on-chain activity — balances and tx_count return as 0 with no Basename","Payment not included or insufficient USDC — x402 payment required error","Network/RPC outage on Base may cause 503 or timeout","Address is valid but has no registered Basename — primary_basename field is null or absent"],"whenToPreferThis":"Choose this endpoint when you need deterministic, pay-per-call on-chain profile data for a specific Base L2 address without committing to a subscription. It is ideal when you want balances, transaction count, contract detection, and Basename resolution in a single call. Prefer it over general Ethereum RPC providers when you need a simple REST interface with USDC micropayment billing via x402 and no API key setup.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-11-01T06:30:27.357Z","isFirstParty":false,"canonicalSlug":"base-reads-address-intelligence-0c36185b"}