{"uid":"cap_Q-TPbVWr-vBaMAqWam3sL","slug":"sitecheck-evm-address-lookup-9e6252d0","name":"SiteCheck EVM Address Lookup","description":"Native balance, nonce and account type of an EVM address on Base (default), Ethereum, Arbitrum, Optimism or Polygon: a wallet, a contract, or an EIP-7702 delegated wallet with its delegate. On Ethereum also the ENS primary name, when it resolves back to the address. Read over public RPC.","url":"https://api.sitecheck-api.workers.dev/api/evm/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":{"chain":{"type":"string","description":"base (default), ethereum, arbitrum, optimism or polygon"},"address":{"type":"string","description":"EVM address, 0x…"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"kind":"eip7702-delegated","chain":"ethereum","nonce":5969,"native":{"usd":14491.96,"amount":5.76965394,"symbol":"ETH"},"source":"https://ethereum-rpc.publicnode.com (eth_getBalance, eth_getTransactionCount, eth_getCode); Coinbase spot price; ENS reverse record on Ethereum","address":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","checkedAt":"2026-10-14T04:49:17.947Z","codeBytes":23,"disclaimer":"Information only, not financial advice.","delegatedTo":"0x5A7FC11397E9a8AD41BF10bf13F22B0a63f96f6d","primaryName":"vitalik.eth"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_wH81Wu2PUB3ePYeYGMhRs","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Looks up EVM wallet address details including native balance, nonce, code bytes, ENS name, delegation info, and account type across multiple EVM chains","exampleAgentPrompt":"Can you check what the ETH balance and ENS name are for the address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Ethereum?","exampleUseCases":[{"title":"Identify whale wallet holdings","prompt":"Look up the native ETH balance in USD and ENS name for 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Ethereum — I want to know if it's a known account and how much ETH it holds."},{"title":"Check if address is a smart contract","prompt":"Is the address 0x5A7FC11397E9a8AD41BF10bf13F22B0a63f96f6d on Ethereum a regular wallet or a smart contract? Can you also tell me its nonce and any delegation info?"},{"title":"Verify Base wallet balance before payment","prompt":"Before I send funds, can you check the current native token balance and nonce for 0xAbC123...def456 on Base so I know it's an active account?"}],"resultDescription":"Returns a JSON object with the account's kind (EOA, contract, or EIP-7702-delegated), chain, nonce, native token balance (amount, symbol, and USD value), primary ENS name if any, delegation target address if EIP-7702, code byte count, checked timestamp, and data sources used.","failureModes":["Invalid or malformed 0x address returns an error","Unsupported chain name returns an error","Address with no on-chain activity may return zero balance and nonce","ENS resolution may fail or return null if no primary name is set","RPC node timeouts can cause delayed or failed responses"],"whenToPreferThis":"Use this endpoint when you need a quick, multi-field snapshot of an EVM address including balance, nonce, account type, and ENS name in a single call. Prefer it over raw RPC calls when you want USD-denominated balances and ENS resolution bundled together. Supports Base, Ethereum, Arbitrum, Optimism, and Polygon.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-19T06:44:33.146Z","isFirstParty":false,"canonicalSlug":"sitecheck-evm-address-lookup-9e6252d0"}