{"uid":"cap_JB9C4jjNOIjUzf7i_qFoI","slug":"mint-intel-base-chain-native-eth-balance-567da04f","name":"Mint Intel: Base Chain Native ETH Balance","description":"Native ETH balance of any Base address (wei + ETH, latest block) via eth_getBalance.","url":"https://mintintel.35-171-220-195.sslip.io/v1/base/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"],"type":"string"},"pathParams":{"type":"object","required":["address"],"properties":{"address":{"type":"string","description":"0x-prefixed 20-byte EVM address"}},"additionalProperties":false},"queryParams":{"type":"object","properties":{},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["address","wei","eth"],"properties":{"eth":{"type":"string"},"wei":{"type":"string"},"address":{"type":"string"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_hlIGrRYiC1AmRoHHCqTQX","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","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 of any Base network address in both wei and ETH, queried at the latest block via eth_getBalance.","exampleAgentPrompt":"What's the current native ETH balance of the Base address 0x4838B106FCe9647Bdf1E7877BF73cE8B0BAD5f97? Give me both the wei and ETH amounts.","exampleUseCases":[{"title":"DeFi bot pre-flight balance check","prompt":"Before executing the swap, check whether 0x742d35Cc6634C0532925a3b844Bc454e4438f44e has enough ETH on Base to cover gas — show me the balance in both wei and ETH."},{"title":"Portfolio dashboard ETH balance","prompt":"Pull the native ETH balance on Base for 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 so I can display it on the portfolio page."},{"title":"Wallet funding verification","prompt":"I just funded a new Base wallet at 0x1234567890abcdef1234567890abcdef12345678 — can you confirm the ETH balance has shown up yet?"}],"resultDescription":"Returns a JSON object containing the queried Base address, its native ETH balance expressed as a wei string (full integer precision), and the same balance converted to ETH as a decimal string, all reflecting the latest block on Base mainnet.","failureModes":["Invalid or malformed address (non-0x-prefixed or wrong length) returns an error","Address with zero balance returns wei: '0' and eth: '0.0' — not an error","Network or RPC timeout may return a 5xx error","Rate limiting or payment failure (x402) blocks the request"],"whenToPreferThis":"Use this endpoint when you need the native ETH balance of a specific Base chain address quickly and cheaply ($0.001 per call). Prefer it over Ethereum mainnet balance endpoints when the user's address is on Base (chain ID 8453). Choose it over broader multi-token balance endpoints when you only need the native ETH balance and want minimal latency and cost.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:41:39.929Z","isFirstParty":false,"canonicalSlug":"mint-intel-base-chain-native-eth-balance-567da04f"}