{"uid":"cap_cLNnIYIPgLpmdIm1koPB3","slug":"base-wallet-intelligence-api-x402-payment-gated-eaab5f39","name":"Base Wallet Intelligence API (x402 Payment-Gated)","description":"Live Base wallet intelligence paid with USDC via x402","url":"https://nova5-x402.yesterdays-signal.workers.dev/wallet","method":"GET","headers":{},"bodySchema":{"type":"object","required":["address"],"properties":{"address":{"type":"string","description":"EVM wallet address"}}},"responseSchema":{"type":"object","properties":{"provenance":{"type":"string"},"block_number":{"type":"number"},"usdc_balance":{"type":"number"},"gas_price_wei":{"type":"string"},"gas_price_gwei":{"type":"number"},"native_balance":{"type":"number"},"block_timestamp":{"type":"number"}}},"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_DsMovaVuujQzkSO2n_QrB","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 live on-chain wallet data for a given EVM address on Base, including USDC balance, native ETH balance, current gas price, and latest block info, paid per-call with USDC via x402.","exampleAgentPrompt":"What's the current USDC balance and ETH balance for the Base wallet 0x1234...abcd, and what's the gas price right now?","exampleUseCases":[{"title":"Pre-payment wallet sufficiency check","prompt":"Before I send that USDC payment, can you check whether wallet 0xAbCd1234...5678 has enough USDC balance on Base to cover it?"},{"title":"DeFi portfolio snapshot","prompt":"Pull the live ETH and USDC balances for the Base wallet 0xDeFi9876...Cafe so I can see its current on-chain state."},{"title":"Gas price monitoring before transaction","prompt":"What's the current gas price on Base in gwei right now? Check against wallet 0xABCD...1234 while you're at it so I know if it has enough ETH for gas."}],"resultDescription":"Returns a JSON object with the wallet's USDC balance, native ETH balance, current gas price in both wei and gwei, the latest Base block number, the block timestamp, and a provenance string indicating data source.","failureModes":["Invalid or malformed EVM address returns an error response","Wallet with no on-chain history may return zero balances","x402 payment failure or insufficient USDC for the $0.001 fee blocks the request","Network timeouts if Base RPC is congested","Rate limiting if payment is not processed correctly"],"whenToPreferThis":"Use this endpoint when you need real-time, on-chain wallet intelligence specifically on the Base L2 network — including USDC balance, native ETH balance, and current gas prices — and are operating in an x402-compatible payment environment. Prefer this over generic blockchain explorers when you need structured, machine-readable data payable per-call with USDC microtransactions.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:36:45.039Z","isFirstParty":false}