{"uid":"cap_B8_3AlI0pevQvjAjb_tzq","slug":"newbotlabor-base-wallet-check-280a9a97","name":"NewBotLabor Base Wallet Check","description":"Pay-per-call utilities for autonomous agents, paid with x402 (USDC on Base; no account, no API key).","url":"https://newbotlabor--254ecdfcc2de11f19b541607ee4eb77e.web.val.run/api/base/wallet-check?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","description":"EOA or contract address on Base"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"chain":"base","nonce":12,"address":"0x174897b2c5B133feB08A8FB90856B08F9fce8647","oneLiner":"EOA nonce 12; 18.2961 USDC, 0.000000 ETH","ethBalance":0,"isContract":false,"usdcBalance":18.29,"recentUsdcTransfers":{"inbound":3,"outbound":0}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_eAXnhQvbncB7nb4QJiCd_","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Looks up an Ethereum address on Base and returns its ETH balance, USDC balance, nonce, contract status, and recent USDC transfer activity.","exampleAgentPrompt":"Can you do a quick wallet check on the Base address 0x174897b2c5B133feB08A8FB90856B08F9fce8647 and tell me its ETH balance, USDC balance, nonce, and whether it's a contract or a regular wallet?","exampleUseCases":[{"title":"Pre-payment funding verification","prompt":"Before I send USDC to 0xAbC123...def, can you check if my sender wallet 0x174897b2c5B133feB08A8FB90856B08F9fce8647 on Base has enough USDC balance and what its current nonce is?"},{"title":"Contract vs EOA identity check","prompt":"I need to know if the address 0xdAC17F958D2ee523a2206206994597C13D831ec7 on Base is a smart contract or a regular user wallet — can you check?"},{"title":"Agent treasury health snapshot","prompt":"Give me a quick snapshot of the agent treasury wallet 0x174897b2c5B133feB08A8FB90856B08F9fce8647 on Base — I want to see the ETH balance, USDC balance, and how many inbound USDC transfers it has received recently."}],"resultDescription":"Returns a JSON object containing the queried address, the chain ('base'), the account nonce, a human-readable one-liner summary, ETH balance, USDC balance, a boolean indicating whether the address is a smart contract, and counts of recent inbound and outbound USDC transfers.","failureModes":["Invalid or malformed Ethereum address returns an error","Address not found or never active on Base may return zero balances and nonce","Payment failure via x402 (insufficient USDC for the $0.002 fee) blocks the request","Network or RPC errors on Base may cause intermittent failures","Missing required 'address' query parameter results in a validation error"],"whenToPreferThis":"Choose this endpoint when an AI agent needs a quick, no-account preflight check on a Base wallet — especially before executing payments, verifying counterparty funds, or confirming whether an address is a contract. It is ideal for autonomous agents using x402 micropayments since no API key or account registration is required. Prefer it over manual RPC calls or heavier blockchain indexer APIs when you only need a concise balance + nonce + contract status snapshot on Base.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T12:41:03.114Z","isFirstParty":false,"canonicalSlug":"newbotlabor-base-wallet-check-280a9a97"}