{"uid":"cap_wUp1VACy9j76eBzmthBIJ","slug":"cortexcloud-token-balance-lookup-83020748","name":"CortexCloud Token Balance Lookup","description":"OpenAI-compatible AI and data API for agents. Pay per call in USDC on Base via x402 — no API keys, no subscriptions, no lock-in.","url":"https://api.cortexcloud.org/x402/v1/data/base/token-balance","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"required":{"type":"string"},"properties":{"type":"string"}}},"responseSchema":{"type":"object","format":"application/json","example":{"raw":"0","token":"0x...","address":"0x...","network":"base"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_5wzUJvUmN-8llRt5xVHk2","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the token balance for a given wallet address on the Base blockchain network","exampleAgentPrompt":"What's the token balance for wallet 0xAbc123...def on Base — specifically for the USDC contract at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913?","exampleUseCases":[{"title":"Pre-transaction balance check","prompt":"Before I send any tokens, check the USDC balance of my wallet 0xAbc123...def on Base so I know I have enough funds."},{"title":"DeFi portfolio snapshot","prompt":"Pull the token balance for wallet 0x742d35Cc6634C0532925a3b844Bc454e4438f44e on Base for the DAI token contract 0x50c5725949A6F0c72E6C4a641F24049A917DB0Cb."},{"title":"Agent treasury monitoring","prompt":"Check what the current token balance is for our agent treasury wallet 0xDead...Beef on Base for the USDC token so I can decide if we need to top it up."}],"resultDescription":"Returns the on-chain token balance for the specified wallet address and token contract on the Base network, typically as a numeric value representing the raw or formatted token amount held by that address.","failureModes":["Invalid or malformed wallet address returns an error","Unsupported or non-existent token contract address returns zero or error","Network congestion or RPC issues may cause timeout","Rate limiting if too many calls are made in rapid succession","Missing required parameters (address or token contract) returns a 400-level error"],"whenToPreferThis":"Choose this endpoint when you need a quick, pay-per-call on-chain token balance lookup on Base without managing your own RPC node, API keys, or subscriptions. Ideal for AI agents that need ad-hoc balance checks as part of a larger workflow without infrastructure overhead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:40:01.610Z","isFirstParty":false}