{"uid":"cap_NoOBpBE8gsPGs4XApzgJ6","slug":"nexusapi-crypto-address-balance-lookup-47e54db4","name":"NexusAPI Crypto Address Balance Lookup","description":"Crypto, AI, Social Media, Finance, Weather, Tools & more. Pay per call in USDC on Base. No API keys.","url":"https://nexus-api-peach-nine.vercel.app/api/crypto/address/balance","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"query":{"type":"string","description":"Search query or input parameter"}}},"responseSchema":{"type":"object","description":"API response data"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.130773","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":"$0.130773/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.130773","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.130773","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_YiD06c2p9-16E_eSeRlYa","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.130773","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Retrieves the cryptocurrency balance for a given blockchain wallet address","exampleAgentPrompt":"Can you check the current crypto balance for wallet address 0x742d35Cc6634C0532925a3b8D4C9C6B16f2b3e14?","exampleUseCases":[{"title":"Monitor customer wallet holdings for fraud detection","prompt":"I need you to regularly check the crypto balances for these customer wallet addresses and alert me if any balance suddenly drops by more than 50% in a day."},{"title":"Verify user funds before processing withdrawal requests","prompt":"Before we process this withdrawal request, can you check how much USDC this user actually has in their wallet at 0x8ba1f109551bD432803012645Ac136ddd64DBA72?"},{"title":"Track portfolio allocation across multiple chains","prompt":"Help me get a snapshot of all the crypto holdings across these five wallet addresses so I can see our total exposure and rebalance if needed."}],"resultDescription":"Returns the cryptocurrency balance associated with the provided blockchain wallet address, likely including token amounts and possibly token type or chain information.","failureModes":["Invalid or malformed wallet address returns an error or empty result","Address not found on the queried blockchain returns zero or null balance","Network or RPC node unavailability causes timeout or 503 error","Rate limiting or payment failure (402) if USDC payment is not properly attached","Unsupported blockchain or token type may return no data"],"whenToPreferThis":"Use this endpoint when you need a quick, pay-per-call balance check for a specific crypto wallet address without managing API keys. Prefer this over self-hosted blockchain node queries when simplicity and low setup overhead matter. Best for agents that occasionally need on-chain balance data without committing to a subscription.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:34:34.656Z","isFirstParty":false}