{"uid":"cap_ezxVCcVAgBkVxVCy3sQ1K","slug":"evm-on-chain-balance-lookup-hub-europe-germany-52ffea00","name":"EVM On-Chain Balance Lookup (Hub Europe, Germany)","description":"Pay-per-call website uptime/latency/TLS checks and fetch-to-Markdown, measured from Hub Europe (Germany). USDC on Base via x402. No account or API key.","url":"https://gentlepenguin.ccwu.cc:8443/v1/chain/balance?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":["chain","address"],"properties":{"chain":{"type":"string","example":"base","description":"base or ethereum"},"address":{"type":"string","example":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","description":"0x EVM address"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"block":36000000,"chain":"base","nonce":5,"address":"0x...","balance_eth":"0.0123","balance_wei":"12300000000000000"}},"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_jrzcKY618mYV4YdHguswf","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 the ETH balance and nonce for any EVM address on Base or Ethereum, paid per-call via USDC on Base using x402.","exampleAgentPrompt":"What's the current ETH balance and nonce for wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Base?","exampleUseCases":[{"title":"Verify whale wallet balance before trade","prompt":"Can you check how much ETH is currently sitting in 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Base? I want to see both the ETH amount and the raw wei value."},{"title":"Check account nonce for transaction sequencing","prompt":"What's the current nonce for 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B on Ethereum? I need to know how many transactions they've sent."},{"title":"Monitor smart contract ETH holdings","prompt":"Look up the on-chain ETH balance for the address 0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD on Base and tell me the block number it was fetched at."}],"resultDescription":"Returns a JSON object with the wallet address, chain name, ETH balance as a decimal string, ETH balance in wei, the account nonce, and the block number at which the data was read.","failureModes":["Invalid or malformed 0x address returns an error response","Unsupported chain value (not 'base' or 'ethereum') causes a validation error","Payment failure via x402 prevents the call from completing","Network or RPC node errors on the backend may return a 5xx response","Address with no transactions may return nonce of 0 and zero balance, which is valid but may be unexpected"],"whenToPreferThis":"Use this endpoint when you need a quick, no-account, pay-per-call ETH balance or nonce check for any EVM address on Base or Ethereum without setting up an API key or RPC subscription. It is ideal for agents that only need occasional on-chain lookups and want to pay micropayments via USDC on Base using the x402 protocol, queried from European infrastructure.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-27T12:37:23.929Z","isFirstParty":false,"canonicalSlug":"evm-on-chain-balance-lookup-hub-europe-germany-52ffea00"}