{"uid":"cap_iyLi9uV4qNNDkTYTMLgKR","slug":"evm-chain-balance-lookup-europe-hub-28325993","name":"EVM Chain Balance Lookup (Europe Hub)","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://kollmz.site: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_A7luxklp_dyKMd7dCU6mK","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":"Returns the current ETH balance, nonce, and block number for an EVM address on Base or Ethereum, queried from a European node, paid per-call via x402/USDC.","exampleAgentPrompt":"What's the current ETH balance and nonce for wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Base?","exampleUseCases":[{"title":"DeFi bot pre-flight balance check","prompt":"Before executing the swap, check the ETH balance of 0xAbc123...def456 on Base so I know if it has enough gas."},{"title":"Wallet monitoring for accounting","prompt":"Pull the current ETH balance and block number for address 0x742d35Cc6634C0532925a3b844Bc454e4438f44e on Ethereum — I need it for our end-of-day records."},{"title":"Nonce lookup before transaction broadcast","prompt":"What's the current nonce for wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Base? I need to build the next transaction correctly."}],"resultDescription":"A JSON object containing the wallet address, chain name, current ETH balance in both ETH and wei units, the account nonce, and the most recent block number at time of query.","failureModes":["Invalid or malformed 0x address returns an error response","Unsupported chain value (only 'base' and 'ethereum' accepted) causes a validation error","Node connectivity issues from the European hub may cause timeouts","Payment failure via x402/USDC results in HTTP 402 and no data returned","Missing required query parameters (chain or address) returns a schema validation error"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, no-account, pay-per-call EVM balance check on Base or Ethereum without setting up an Alchemy/Infura API key. Especially useful for agents making occasional on-demand balance queries billed per-use in USDC, or when European node proximity is desirable for latency or compliance reasons.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-27T12:56:00.764Z","isFirstParty":false,"canonicalSlug":"evm-chain-balance-lookup-europe-hub-28325993"}