{"uid":"cap_R9S_135r6_e1vp1t513su","slug":"evm-chain-balance-lookup-x402-hub-europe-germany-8f09e17d","name":"EVM Chain Balance Lookup (x402, 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://rubycom.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_h76E25eyXNvHO-cwRLVA7","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":"Fetches the native ETH balance, nonce, and block info for a given EVM address on Base or Ethereum, paid per-call via x402/USDC.","exampleAgentPrompt":"Can you check the ETH balance of wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Base and tell me how much ETH it holds and what its current nonce is?","exampleUseCases":[{"title":"DeFi bot pre-flight balance check","prompt":"Before executing a trade, check whether 0xAbc123...def has enough native ETH on Base to cover gas — look up its balance and nonce right now."},{"title":"Wallet funding verification","prompt":"I just sent ETH to 0x1234567890abcdef1234567890abcdef12345678 on Ethereum — can you confirm the balance updated and what block it's at?"},{"title":"Portfolio dashboard enrichment","prompt":"For each of these Base wallet addresses, look up the current ETH balance and nonce so I can populate my dashboard: 0xAAA...111 and 0xBBB...222."}],"resultDescription":"Returns a JSON object with the queried wallet address, the chain name, the current block number, the address nonce, native ETH balance in both ETH-unit string and raw wei integer. Useful for confirming holdings, gas availability, or transaction count on Base or Ethereum mainnet.","failureModes":["Invalid or malformed 0x address returns an error or empty result","Unsupported chain value (anything other than 'base' or 'ethereum') may return an error","Node connectivity issues at the Germany hub may cause timeouts","Payment failure via x402 (insufficient USDC) blocks the request","Address with no on-chain activity may return zero balance and nonce 0 (not an error)"],"whenToPreferThis":"Prefer this endpoint when you need a lightweight, no-account, pay-per-call native ETH balance and nonce check on Base or Ethereum without setting up API keys with Alchemy, Infura, or similar providers. Ideal for autonomous agents that need sporadic on-chain balance lookups billed in micro-USDC via x402.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-27T06:32:02.739Z","isFirstParty":false,"canonicalSlug":"evm-chain-balance-lookup-x402-hub-europe-germany-8f09e17d"}