{"uid":"cap_N14ZZJz9qf95_ZqPTccuS","slug":"wallet-balance-ethereum-single-address-2e1652b6","name":"Wallet Balance (Ethereum) - Single Address","description":"Native ETH balance for any wallet address on Ethereum, from Etherscan's V2 API. Returns both raw wei and a rounded human-readable ETH amount. $0.01/call.","url":"https://www.x402financialdata.com/wallet-balance/:address?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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","HEAD","DELETE"],"type":"string"},"pathParams":{"type":"object","required":["address"],"properties":{"address":{"type":"string","description":"EVM wallet address, e.g. 0xde0b295669a9fd93d5f28d9ec85e40f4cb697bae"}}},"queryParams":{"type":"object","required":[],"properties":{"chain":{"enum":["eth"],"type":"string","description":"Which chain to query. Only 'eth' is supported right now."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"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_Xy1R_VvmFBZX0IJs54lI3","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":"Returns the native ETH balance for a single Ethereum wallet address, providing both raw wei and a human-readable ETH amount.","exampleAgentPrompt":"What's the current ETH balance of the wallet 0xde0b295669a9fd93d5f28d9ec85e40f4cb697bae on Ethereum?","exampleUseCases":[{"title":"Portfolio balance snapshot","prompt":"Can you check how much ETH is currently sitting in the wallet 0xde0b295669a9fd93d5f28d9ec85e40f4cb697bae? I want to know both the raw wei amount and the rounded ETH figure."},{"title":"Smart contract ETH holdings check","prompt":"How much ETH does the Uniswap v3 router contract at 0xE592427A0AEce92De3Edee1F18E0157C05861564 currently hold on Ethereum mainnet?"},{"title":"Verify wallet funding before transaction","prompt":"Before I send a transaction, can you confirm that the wallet 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B actually has ETH in it on Ethereum?"}],"resultDescription":"Returns the native ETH balance for the queried wallet address in two forms: the raw balance in wei (full integer precision) and a rounded human-readable ETH amount (e.g. 1.45 ETH). The response is sourced from Etherscan's V2 API and reflects the current on-chain state.","failureModes":["Invalid or malformed Ethereum address returns an error","Address with zero balance returns 0 wei and 0 ETH (not an error)","Unsupported chain parameter (only 'eth' is supported) returns an error","Rate limiting or Etherscan API downtime may cause upstream failures","Payment failure (insufficient USDC) prevents the call from executing"],"whenToPreferThis":"Use this endpoint when you need the native ETH balance for a single specific wallet address on Ethereum mainnet and want both raw wei precision and a human-readable ETH value in one call. Prefer this over the Multi-Address Balance endpoint when querying only one address, as it is simpler and equally priced. Choose this when you need the current on-chain ETH balance rather than token balances or transaction history.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T12:31:42.187Z","isFirstParty":false,"canonicalSlug":"wallet-balance-ethereum-single-address-2e1652b6"}