{"uid":"cap_rz5JuG5d4Z5pP6BN9D3lA","slug":"x402-experiments-address-enrichment-lab-paidapis-net-eb6df16a","name":"x402-experiments Address Enrichment (lab.paidapis.net)","description":"Enrichment: attaches real on-chain context to a bare address (contract vs EOA, native balance, transaction count, new-vs-active classification) — checkable facts only, no unverifiable labels.","url":"https://lab.paidapis.net/api/enrich-address","method":"GET","headers":{},"bodySchema":{"type":"object","required":["address"],"properties":{"address":{"type":"string","description":"Address to look up."}}},"responseSchema":{"type":"object","properties":{"address":{"type":"string"},"isContract":{"type":"boolean"},"classification":{"enum":["contract","new-wallet","active-wallet"],"type":"string"},"nativeBalanceEth":{"type":"number"},"transactionCount":{"type":"integer"}}},"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_hKDPVYsR0F8BSdx8p4ZAV","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":"Enriches a blockchain address with classification, native ETH balance, and transaction count to distinguish contracts from wallets","exampleAgentPrompt":"Can you look up the address 0x742d35Cc6634C0532925a3b8D4C9B5B9C1234567 and tell me whether it's a smart contract or a wallet, its ETH balance on Base, and how many transactions it's made?","exampleUseCases":[{"title":"Pre-transfer wallet sanity check","prompt":"Before I send funds, can you check if 0xAbCd1234... is an active wallet or a brand-new address with no transaction history on Base?"},{"title":"Detect smart contract vs EOA","prompt":"I need to know whether 0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD is a deployed smart contract or a regular externally owned wallet — can you check?"},{"title":"Counterparty due diligence","prompt":"I'm about to do a deal with someone who gave me their Base address 0x4838B106FCe9647Bdf1E7877BF73cE8B0BAD5f97 — can you tell me its ETH balance and total transaction count so I know how established they are?"}],"resultDescription":"Returns the queried address alongside a boolean isContract flag, a classification enum (contract, new-wallet, or active-wallet), the native ETH balance as a decimal number, and the total transaction count as an integer.","failureModes":["Invalid or malformed address string returns a validation error","Address not found on Base mainnet may return zero balance and zero transaction count rather than an error","Network or RPC timeouts can cause delayed or failed responses","Payment failure via x402 protocol will result in a 402 response before any data is returned"],"whenToPreferThis":"Choose this endpoint when you need a quick, cheap ($0.01 USDC) on-chain profile of an address on Base mainnet — especially when you need to distinguish smart contracts from wallets or gauge how active an address is. Prefer it over full block explorer APIs when you only need classification, balance, and transaction count without deep transaction history.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:50:44.678Z","isFirstParty":false}