{"uid":"cap_mgflJkRi_PEJMrUxrIecr","slug":"base-eth-balance-lookup-trading-research-fa8a63e7","name":"Base ETH Balance Lookup (Trading Research)","description":"Base ETH balance for Zero address: Address: Zero address. Read an address native ETH balance on Base. Focus: trading research. Uses live Coinbase Exchange or Base RPC data.","url":"https://market.datapackvibe.com/x402/crypto-base-eth-balance-trading-research?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"address":{"type":"string","default":"0x0000000000000000000000000000000000000000"}}},"responseSchema":null,"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_jtn-1QDyVrVFkcBv9ti1Q","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 balance of any wallet address on the Base network using live Coinbase Exchange or Base RPC data, optimized for trading research workflows.","exampleAgentPrompt":"What's the current native ETH balance on Base for the wallet address 0xAbCd1234...? I need it for trading research.","exampleUseCases":[{"title":"Pre-trade wallet balance check","prompt":"Before I execute this trade, can you check how much ETH the address 0x742d35Cc6634C0532925a3b844Bc454e4438f44e currently holds on Base so I know if it has enough to cover gas?"},{"title":"Whale wallet monitoring","prompt":"I'm tracking a whale — can you pull the live ETH balance on Base for 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 so I can see their current on-chain position?"},{"title":"Counterparty due diligence","prompt":"I want to verify the Base ETH holdings of this counterparty address 0x0000000000000000000000000000000000000000 before I finalize the deal — can you get the live balance?"}],"resultDescription":"Returns the native ETH balance held by the specified wallet address on the Base network, sourced from live Coinbase Exchange or Base RPC data. The response is suitable for real-time trading research and on-chain analysis.","failureModes":["Invalid or malformed Ethereum address returns an error","Address with zero balance returns 0 rather than an error","RPC node downtime may cause timeout or stale data","Rate limiting may apply under heavy usage","Non-Base-network addresses may return incorrect or zero balance"],"whenToPreferThis":"Choose this endpoint when you need a real-time, live native ETH balance on the Base network specifically — particularly for trading research contexts where data freshness from Coinbase Exchange or Base RPC matters. Prefer it over generic block explorers when you need a pay-per-call, programmatic API response without scraping or rate-limit concerns.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-01T06:48:25.263Z","isFirstParty":false,"canonicalSlug":"base-eth-balance-lookup-trading-research-fa8a63e7"}