{"uid":"cap_qcXZufw9svaEl9tgJY4x3","slug":"base-erc-20-token-balance-lookup-de58643e","name":"Base ERC-20 Token Balance Lookup","description":"Base USDC wallet balance for Wallet operations: Read a wallet token balance on Base for a supplied ERC-20 contract. Focus: wallet operations. Uses live Coinbase Exchange or Base RPC data.","url":"https://market.datapackvibe.com/x402/crypto-base-usdc-balance-wallet-operations?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"token":{"type":"string","default":"0x50c5725949A6F0c72E6C4a641F24049A917DB0Cb"},"address":{"type":"string","default":"0x8bc2AECdD86097F74a1a5fa17764108D9a683C8C"}}},"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_F6T8lDQRZ6UHc9lwcL2Nc","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 the on-chain token balance of a given wallet address for a specified ERC-20 contract on the Base network, defaulting to USDC.","exampleAgentPrompt":"What's the current USDC balance for wallet 0x8bc2AECdD86097F74a1a5fa17764108D9a683C8C on Base? Use the USDC contract at 0x50c5725949A6F0c72E6C4a641F24049A917DB0Cb.","exampleUseCases":[{"title":"DeFi portfolio balance check","prompt":"Can you check how much USDC wallet 0x8bc2AECdD86097F74a1a5fa17764108D9a683C8C currently holds on Base? The USDC contract is 0x50c5725949A6F0c72E6C4a641F24049A917DB0Cb."},{"title":"Pre-payment liquidity verification","prompt":"Before I initiate this transaction, check if wallet address 0x8bc2AECdD86097F74a1a5fa17764108D9a683C8C has enough USDC on Base — the token contract is 0x50c5725949A6F0c72E6C4a641F24049A917DB0Cb."},{"title":"Agent wallet funding status","prompt":"My agent's Base wallet is 0x8bc2AECdD86097F74a1a5fa17764108D9a683C8C — can you check its live USDC balance using the Base USDC contract 0x50c5725949A6F0c72E6C4a641F24049A917DB0Cb so I know if it needs to be topped up?"}],"resultDescription":"Returns the live ERC-20 token balance (e.g. USDC amount) held by the specified wallet address on the Base network, sourced from Coinbase Exchange or Base RPC data.","failureModes":["Invalid wallet address format returns an error or zero balance","Unknown or unsupported ERC-20 contract address may return zero or an error","Network or RPC downtime may cause timeouts or stale data","Malformed request body missing required fields returns a validation error"],"whenToPreferThis":"Choose this endpoint when you need a live, on-chain ERC-20 token balance for a specific wallet on the Base L2 network, especially for USDC. Prefer it over generic blockchain explorers when you need a programmatic, pay-per-call lookup integrated into an agent workflow without API key management.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-01T06:48:14.215Z","isFirstParty":false,"canonicalSlug":"base-erc-20-token-balance-lookup-de58643e"}