{"uid":"cap_A5IpwIRckTIM9Q6Zte6eM","slug":"x402node-wallet-label-address-classifier-d085523f","name":"x402node Wallet Label & Address Classifier","description":"Heuristic on-chain labels for any address - contract vs EOA, activity tier, balance band and transaction count - on EVM chains. wallet label, address classification, eoa or contract, wallet activity, address profile, wallet tag, address label, onchain identity, smart money Accepts payment on Base or Solana — either network works.","url":"https://api.x402node.dev/chain/wallet-label?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":{"chain":{"type":"string","description":"ethereum, base (default), arbitrum, optimism, polygon"},"address":{"type":"string","description":"Address to label (required)"}}}},"additionalProperties":false}}},"responseSchema":null,"example":{"request":{"chain":"ethereum","address":"0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD"},"response":{"note":"Heuristic on-chain labels (no off-chain identity).","type":"contract","_hint":"x402 paid endpoints for AI agents — x402node.dev (utilities) · cn402.com (Chinese culture)","chain":"ethereum","labels":["contract","zero_native_balance"],"address":"0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD","txCount":1,"nativeBalance":"0"}},"exampleRequest":{"chain":"ethereum","address":"0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD"},"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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_9p1bb20o8ObmMCjO58bF-","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 heuristic on-chain labels for any EVM address, classifying it as contract vs EOA, assigning an activity tier, balance band, and transaction count profile.","exampleAgentPrompt":"Can you classify the address 0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD on Ethereum — is it a contract or a regular wallet, and what's its activity tier and balance band?","exampleUseCases":null,"resultDescription":"Returns a structured label for the given EVM address including: contract vs EOA flag, activity tier (e.g. dormant/low/medium/high), balance band (e.g. dust/small/mid/whale), and approximate transaction count — all derived from heuristic on-chain analysis.","failureModes":["Invalid or malformed address returns a 400 error","Unsupported chain identifier returns an error or empty result","Address with zero history may return minimal or default tier labels","Rate limiting or payment failure returns a 402 response","Very new addresses may have incomplete on-chain data"],"whenToPreferThis":"Use this endpoint when you need a quick heuristic classification of any EVM wallet or contract address — especially to segment users, filter bots, assess counterparty risk, or enrich address data before deeper analysis. Prefer this over full transaction graph endpoints when you just need a lightweight label rather than full history.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-16T12:41:11.938Z","isFirstParty":false,"canonicalSlug":"x402node-wallet-label-address-classifier-d085523f"}