{"uid":"cap_048ycL0Vh_iPva1bYWDnV","slug":"sitesignal-public-base-wallet-balance-snapshot-e7558686","name":"SiteSignal Public Base Wallet Balance Snapshot","description":"Return point-in-time public native ETH and native Base USDC balances for one EVM address from Base mainnet RPC.","url":"https://trinity-throw-thursday-gravity.trycloudflare.com/x402/base-wallet-balance","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["address"],"properties":{"address":{"type":"string","pattern":"^0x[0-9a-fA-F]{40}$","description":"Public EVM address."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_KaEerZoWr4yKDnFsUUt-d","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a point-in-time snapshot of native ETH and native USDC balances for a given EVM address on Base mainnet.","exampleAgentPrompt":"What are the current ETH and USDC balances for the Base mainnet wallet 0x742d35Cc6634C0532925a3b844Bc454e4438f44e?","exampleUseCases":[{"title":"DeFi portfolio spot check","prompt":"Can you pull the current ETH and USDC balances on Base for wallet address 0xAbC123...def456 so I can see what I'm working with before I make a move?"},{"title":"Verify payment receipt on Base","prompt":"I'm expecting a USDC payment to 0x1a2b3c4d5e6f7890abcdef1234567890abcdef12 on Base — can you check if the balance has changed and how much USDC is there right now?"},{"title":"Onchain wallet audit for due diligence","prompt":"I need a snapshot of the native ETH and USDC holdings for this Base wallet — 0xDeAdBeEf0000000000000000000000000000dEaD — as of right now for my records."}],"resultDescription":"Returns a point-in-time balance snapshot for the queried EVM address on Base mainnet, including the native ETH balance and the native Base USDC balance, expressed as on-chain values at the moment of the RPC call.","failureModes":["Invalid EVM address format (must match ^0x[0-9a-fA-F]{40}$) — returns a validation error","Address not found or zero-balance address — returns zero values rather than an error","Base mainnet RPC unavailability or timeout — returns a service error","Missing required 'address' query parameter — returns a bad request error","Payment not received (x402 flow) — request rejected before executing"],"whenToPreferThis":"Choose this endpoint when you need a fast, cheap ($0.01 USDC) point-in-time balance check for native ETH and native USDC on Base mainnet for a single EVM address. Prefer it over general blockchain explorers when you need a structured, machine-readable JSON snapshot rather than a human-facing UI, or when operating within an x402 micropayment agent workflow on Base.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:39:16.922Z","isFirstParty":false}