{"uid":"cap_QERi-yvW5pigfBNJCdWp1","slug":"financial-data-x402-multi-balance-7c6403ed","name":"Financial Data x402 – Multi-Balance","description":"Pay-per-call stock, macro, on-chain, and crypto data over the x402 protocol. USDC on Base or Solana, no API keys, no subscriptions.","url":"https://x402financialdata.com/multi-balance","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"},"queryParams":{"type":"object","required":["addresses"],"properties":{"chain":{"enum":["eth"],"type":"string","description":"Which chain to query. Only 'eth' is supported right now."},"addresses":{"type":"string","description":"Comma-separated EVM addresses, up to 20."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"as_of":"2026-07-31T03:43:30.000000","chain":"eth","balances":[{"address":"0xde0b295669a9fd93d5f28d9ec85e40f4cb697bae","balance":7774.49179078,"balance_wei":"7774491790776062094342"}],"native_symbol":"ETH"}},"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_YzUQ17puRHRg_Ulm3QbNK","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 balances (in ETH and wei) for up to 20 EVM addresses on the Ethereum chain, paid per-call via x402 with USDC.","exampleAgentPrompt":"What are the current ETH balances for these Ethereum addresses: 0xde0b295669a9fd93d5f28d9ec85e40f4cb697bae and 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045?","exampleUseCases":[{"title":"Portfolio ETH balance snapshot","prompt":"Can you look up the current ETH balances for these five wallet addresses so I can see the total ETH held across my portfolio: 0xabc...1, 0xabc...2, 0xabc...3, 0xabc...4, 0xabc...5?"},{"title":"Whale wallet balance check","prompt":"I want to know how much ETH is currently sitting in this well-known whale address: 0xde0b295669a9fd93d5f28d9ec85e40f4cb697bae — give me the exact balance in both ETH and wei."},{"title":"DeFi treasury monitoring","prompt":"Check the on-chain ETH balances for these three DAO treasury addresses on Ethereum so I can see if any of them have dropped below 100 ETH: 0xaddr1, 0xaddr2, 0xaddr3."}],"resultDescription":"Returns a JSON object with a timestamp (as_of), the queried chain, the native symbol (ETH), and an array of balance entries — each containing the queried address, its ETH balance as a float, and its balance in wei as a string.","failureModes":["Missing or empty 'addresses' query parameter returns a validation error","More than 20 addresses supplied may result in an error or truncation","Invalid or malformed EVM address format causes a rejection","Unsupported chain value (anything other than 'eth') returns an error","Payment failure or insufficient USDC balance causes x402 payment rejection, blocking the response"],"whenToPreferThis":"Choose this endpoint when you need native ETH balances for one or many EVM addresses on Ethereum without managing API keys or subscriptions — ideal for agents that need pay-as-you-go on-chain balance lookups via the x402 micropayment protocol. It supports batching up to 20 addresses in a single call, making it efficient for portfolio or treasury monitoring tasks.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:45:50.086Z","isFirstParty":false}