{"uid":"cap_5mo2A9aJ1ae6pqu1eWTL1","slug":"x402-onchainexpat-com-925b4dd9","name":"Wallet Identity Cross-Chain Lookup","description":"Pay-per-request AI, crypto, proxy, and utility APIs using x402 protocol","url":"https://x402.onchainexpat.com/api/x402-crypto/wallet-identity-crosschain","method":"POST","headers":{},"bodySchema":{"type":"object","required":["address"],"properties":{"address":{"type":"string","description":"Wallet address (0x + 40 hex chars) or ENS name (e.g. 'vitalik.eth')"}}},"responseSchema":{"type":"object","properties":{"data":{"type":"object","properties":{"chains":{"type":"object","description":"Per-chain breakdown of balance and activity"},"address":{"type":"string"},"identity":{"type":"object","description":"ENS name, known label, wallet type"},"ai_analysis":{"type":"object","description":"AI-powered wallet profile and insights"},"cross_chain_summary":{"type":"object","description":"Aggregated data: total_value_usd, total_transactions, chains_active, wallet_age_days"}}},"success":{"type":"boolean"}}},"example":{"request":{"address":"0x742d35Cc6634C0532925a3b8D4C9C0A4f1234567"},"response":{"data":{"chains":{"base":{"balance":{"native":0,"native_usd":0,"native_symbol":"ETH"},"activity":{"first_seen":null,"total_transactions":0},"nfts_count":0,"tokens_count":0},"polygon":{"balance":{"native":0,"native_usd":0,"native_symbol":"MATIC"},"activity":{"first_seen":null,"total_transactions":0},"nfts_count":0,"tokens_count":0},"arbitrum":{"balance":{"native":0,"native_usd":0,"native_symbol":"ETH"},"activity":{"first_seen":null,"total_transactions":0},"nfts_count":0,"tokens_count":0},"ethereum":{"balance":{"native":0,"native_usd":0,"native_symbol":"ETH"},"activity":{"first_seen":null,"total_transactions":0},"nfts_count":0,"tokens_count":0},"optimism":{"balance":{"native":0,"native_usd":0,"native_symbol":"ETH"},"activity":{"first_seen":null,"total_transactions":0},"nfts_count":0,"tokens_count":0}},"address":"0x742d35cc6634c0532925a3b8d4c9c0a4f1234567","identity":{"ens_name":null,"is_contract":false,"known_label":null,"wallet_type":"new_wallet"},"ai_analysis":{"success":true,"ai_model":"claude-sonnet-4","ai_provider":"claude-cli","wallet_profile":"unknown","recommendations":[],"activity_pattern":"unknown","behavior_summary":"Analysis unavailable","notable_observations":[],"sophistication_level":"unknown"},"cross_chain_summary":{"chains_active":0,"total_value_usd":0,"wallet_age_days":0,"earliest_activity":null,"total_transactions":0}},"cached":false,"success":true,"timestamp":"2026-06-18T05:22:25.218853+00:00"}},"exampleRequest":{"address":"0x742d35Cc6634C0532925a3b8D4C9C0A4f1234567"},"tags":["x402"],"displayCostAmount":"0.1","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":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_hXzEe4H7Q1_0HkBcBEcPR","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Retrieves unified wallet identity information including ENS, labels, activity, and risk data across ETH, Base, Arbitrum, Polygon, and Optimism","exampleAgentPrompt":"Can you pull up the full cross-chain identity profile for wallet 0x742d35Cc6634C0532925a3b8D4C9C0A4f1234567 — I need ENS name, any known labels, activity summary, and risk score across ETH, Base, Arbitrum, Polygon, and Optimism?","exampleUseCases":null,"resultDescription":"A unified wallet identity profile containing ENS name resolution, known labels or tags, on-chain activity summary, and risk assessment aggregated across Ethereum mainnet, Base, Arbitrum, Polygon, and Optimism.","failureModes":["Invalid or malformed wallet address returns an error","Wallet with no activity on any supported chain returns empty or sparse results","Rate limiting or payment failure returns a 402 or 429 error","Unsupported chain query returns a validation error","Timeout if cross-chain aggregation takes too long"],"whenToPreferThis":"Use this endpoint when you need a comprehensive, multi-chain view of a wallet's identity rather than single-chain data. Ideal when the target wallet may operate across multiple EVM-compatible L2s and you want ENS resolution, labeling, and risk scoring in one call rather than querying each chain separately.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:51:57.113Z","isFirstParty":false}