{"uid":"cap_Xx2TuCSDk3U3V_iqLtvT9","slug":"evm-wallet-native-balance-lookup-1f06bca6","name":"EVM Wallet Native Balance Lookup","description":"Native balance of an EVM wallet. ?address=0x...&chain=base","url":"https://pyfile-agent.taile3ff35.ts.net:10000/data/wallet/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"],"type":"string"},"queryParams":{"type":"object","properties":{"chain":{"type":"string"},"address":{"type":"string"}}}}},"output":{"type":"object"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_XXtUB9oj9Z5pCRulNpPX2","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the native token balance of an EVM-compatible wallet address on a specified chain (e.g. Base, Ethereum)","exampleAgentPrompt":"What's the current native token balance of the wallet 0x4838B106FCe9647Bdf1E7877BF73cE8B0BAD5f97 on Base?","exampleUseCases":[{"title":"Pre-transaction gas check","prompt":"Before I send that on-chain transaction, check whether the wallet 0x4838B106FCe9647Bdf1E7877BF73cE8B0BAD5f97 has enough native ETH on Base to cover gas fees."},{"title":"Portfolio native balance snapshot","prompt":"I want to know the native token balance of my wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Ethereum mainnet — just the native coin, not ERC-20s."},{"title":"Counterparty wallet verification","prompt":"Someone says they have funds to pay me — can you verify the native balance on Base for wallet address 0x1234567890abcdef1234567890abcdef12345678?"}],"resultDescription":"Returns the native token balance (e.g. ETH, MATIC) of the queried wallet address on the specified EVM chain, expressed as a numeric value (likely in wei or ether-denominated units depending on implementation).","failureModes":["Invalid or malformed wallet address returns an error or empty result","Unsupported chain name causes a lookup failure","Network or RPC node timeout leads to a failed response","Missing required query parameters (address or chain) causes a 400-style error","Address with zero balance may return 0 rather than an error"],"whenToPreferThis":"Use this endpoint when you need a quick, low-cost read of an EVM wallet's native token balance (ETH on Ethereum or Base, MATIC on Polygon, etc.) on a specific chain. Prefer this over general blockchain explorers when you need a programmatic, agent-callable API rather than a UI lookup. Best suited for pre-flight fund checks, portfolio snapshots, or counterparty verification in agentic workflows.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:10:04.546Z","isFirstParty":false}