{"uid":"cap_MwakK83CCRYnFmnCWt6ZJ","slug":"ethereum-address-inspector-324e57d0","name":"Ethereum Address Inspector","description":"Inspect any Ethereum address: EOA vs contract vs EIP-7702 delegated, ETH balance, nonce, proxy implementation (EIP-1967/1167/zos), and ERC-20 name/symbol/decimals/supply.","url":"https://automaton-tx-explainer.vercel.app/v1/ethereum/address?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["address"],"properties":{"address":{"type":"string","pattern":"^0x[0-9a-fA-F]{40}$","description":"Ethereum address (EOA or contract)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"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_eiXFIcmClfjizUF_TAJGb","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":"Inspect any Ethereum address to determine its type (EOA, contract, or EIP-7702 delegated), ETH balance, nonce, proxy implementation details, and ERC-20 token metadata.","exampleAgentPrompt":"Can you inspect the Ethereum address 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 and tell me if it's a smart contract or a regular wallet, what its ETH balance is, and if it's a proxy contract, what the implementation address is?","exampleUseCases":[{"title":"Identify unknown Ethereum address type","prompt":"I found this Ethereum address 0xdAC17F958D2ee523a2206206994597C13D831ec7 in a transaction — can you tell me if it's a regular wallet or a smart contract, and if it's a token contract, what token is it?"},{"title":"Verify proxy contract implementation","prompt":"Check whether the contract at 0x1F98431c8aD98523631AE4a59f267346ea31F984 is a proxy and if so, tell me what implementation address it's pointing to."},{"title":"Check wallet nonce and balance before sending","prompt":"Before I send a transaction, can you look up the ETH balance and current nonce for my Ethereum address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045?"}],"resultDescription":"Returns a structured object describing the address type (EOA, contract, or EIP-7702 delegated account), current ETH balance, nonce, proxy implementation address if applicable (detected via EIP-1967, EIP-1167 minimal proxy, or ZOS patterns), and if the address is an ERC-20 token contract: its name, symbol, decimals, and total supply.","failureModes":["Invalid address format (not matching 0x + 40 hex chars) returns a validation error","Address not found or RPC node unavailable returns a connectivity/timeout error","Non-ERC-20 contract at address returns empty token metadata fields","Rate limiting or payment failure (x402) blocks the request"],"whenToPreferThis":"Use this endpoint when you need a comprehensive single-call overview of any Ethereum address — combining type classification, balance, nonce, proxy detection, and ERC-20 metadata in one shot. Prefer it over block explorer manual lookups or multi-call RPC sequences when building agents that need to reason about unknown addresses on Ethereum mainnet specifically (not Base or BNB Smart Chain, which have sibling endpoints).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-16T12:38:11.912Z","isFirstParty":false,"canonicalSlug":"ethereum-address-inspector-324e57d0"}