{"uid":"cap_mwM2tG7JULb4DGoLZi9Wl","slug":"base-wallet-usdc-readiness-check-3c84c547","name":"Base Wallet USDC Readiness Check","description":"Checks Base wallets for USDC receiving readiness, publishes paid x402 data APIs, and sells fixed-price agent payment, developer-tool, VPS, wallet-risk, and QA implementation work.","url":"https://x402-wallet-readiness-service.vercel.app/api/readiness","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":"EVM wallet address on Base."}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"address":"0x820a7bf90d944bb26bfD9b62Ab172Fc3A0829cB9","network":"base","is_contract":false,"token_transfers":0,"transaction_count":0,"native_eth_balance":"0","native_usdc_balance":"0"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"2","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":"$2/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"2","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"2","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_rcENerxU6hOF156r4qVdi","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"2","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks whether a Base network EVM wallet address is ready to receive USDC payments by returning balance, transaction history, and contract status.","exampleAgentPrompt":"Can you check if the Base wallet 0x820a7bf90d944bb26bfD9b62Ab172Fc3A0829cB9 is ready to receive USDC — tell me its USDC balance, ETH balance, transaction count, and whether it's a contract?","exampleUseCases":null,"resultDescription":"Returns a JSON object with the wallet address, network (base), a boolean indicating if it's a contract, the number of token transfers, total transaction count, native ETH balance, and native USDC balance.","failureModes":["Invalid or malformed EVM address (not matching 0x + 40 hex chars) returns validation error","Payment not provided or insufficient USDC ($2 required) returns 402 Payment Required","Wallet address not found on Base returns zeroed balances","Network timeout or Vercel cold start may delay response","Rate limiting if too many requests are made in quick succession"],"whenToPreferThis":"Use this endpoint when you need to verify that a Base network wallet is funded and capable of receiving USDC before initiating an x402 payment or agent-to-agent transaction. Ideal for pre-flight checks before sending crypto payments to a new or unknown address, or when onboarding a wallet into an automated payment workflow.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:33:36.111Z","isFirstParty":false}