{"uid":"cap_CCsUEW4OZ7JCIj22BBjVP","slug":"base-wallet-snapshot-29fd4586","name":"Base Wallet Snapshot","description":"Pay-per-call B2B sales lead and procurement intelligence plus Base wallet data for agents. Search EU tenders/RFPs or inspect a Base wallet. Payments use x402 USDC on Base.","url":"https://eu-tender-x402-v2-production.up.railway.app/api/base-wallet-snapshot?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["address"],"properties":{"address":{"type":"string","pattern":"^0x[a-fA-F0-9]{40}$","description":"Base/EVM wallet address"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"usdc":{"type":"object"},"chain":{"type":"string"},"native":{"type":"object"},"address":{"type":"string"},"product":{"type":"string"},"top_tokens":{"type":"array","items":{"type":"object"}},"erc20_count":{"type":"integer"},"generated_at":{"type":"string"}}}}}}},"responseSchema":{"type":"json","example":{"usdc":{"balance":"0"},"chain":"base","native":{"symbol":"ETH","balance":"1.0"},"address":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","product":"Base Wallet Snapshot","top_tokens":[],"erc20_count":0}},"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_HAgHM_bEIxVu588LQGjMn","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 ETH balance, USDC balance, ERC-20 token count, and top tokens for a given Base/EVM wallet address","exampleAgentPrompt":"Can you pull a snapshot of the Base wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 and tell me its ETH balance, USDC balance, and how many ERC-20 tokens it holds?","exampleUseCases":[{"title":"Verify agent wallet funding","prompt":"Check whether the Base wallet at 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B actually has any USDC or ETH on it before I send a payment — give me the full snapshot."},{"title":"Monitor treasury wallet holdings","prompt":"Give me a current snapshot of our DAO treasury wallet 0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD on Base — I need the ETH balance, USDC, and the top tokens it holds right now."},{"title":"Audit counterparty wallet before deal","prompt":"Before we finalize this contract, can you look up the Base wallet 0x71C7656EC7ab88b098defB751B7401B5f6d8976F and tell me what it holds — ETH, USDC, number of ERC-20s, and its top tokens?"}],"resultDescription":"Returns a JSON object containing the wallet address, chain identifier ('base'), native ETH balance and symbol, USDC balance, count of ERC-20 tokens held, a list of top tokens with details, and a generated_at timestamp indicating when the snapshot was taken.","failureModes":["Invalid or malformed wallet address (not matching 0x + 40 hex chars) returns an error","Wallet address with no on-chain activity may return zero balances and empty token list","Payment failure via x402/USDC will block the call from completing","Rate limiting or upstream Base RPC unavailability may cause timeouts","Non-Base EVM addresses may return incomplete or empty data if not deployed on Base"],"whenToPreferThis":"Choose this endpoint when you need a quick, cheap ($0.001 USDC) on-chain snapshot of a Base wallet's balances without setting up your own RPC node or indexer. It is ideal for agents that need to verify funding, audit counterparty wallets, or monitor treasury holdings on Base specifically. Prefer alternatives if you need historical transaction data, multi-chain support beyond Base, or NFT holdings.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:39:16.675Z","isFirstParty":false,"canonicalSlug":"base-wallet-snapshot-29fd4586"}