{"uid":"cap_VXP9a-UIQr5HbTKOkAjmX","slug":"omniapi-crypto-address-balance-lookup-e88ea43f","name":"OmniAPI Crypto Address Balance Lookup","description":"444 endpoints across 9+ chains. Crypto, AI, Social, Finance, Weather, Tools. Pay per call in USDC via x402 with 4 facilitators: Dexter, Meridian, FluxA, GoPlausible.","url":"https://omni-api-cyan.vercel.app/api/crypto/address/balance","method":"POST","headers":{},"bodySchema":{"type":"object","required":["query"],"properties":{"input":{"type":"string","description":"Input data for the endpoint"},"query":{"type":"string","description":"Search query or input text"},"params":{"type":"object","description":"Additional parameters"}}},"responseSchema":{"type":"object","description":"API response data"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.149836","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":"$0.149836/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.149836","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.149836","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_9TpT2ESSK02AIl19VnLDf","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.149836","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the cryptocurrency balance of a given blockchain address across supported chains","exampleAgentPrompt":"What's the current crypto balance for the address 0x1234abcd...5678 — check it across supported chains and tell me how much it's holding.","exampleUseCases":[{"title":"DeFi portfolio monitoring","prompt":"Can you check the on-chain balance for wallet address 0xAbCd...1234 and tell me how much crypto it currently holds?"},{"title":"Fraud or due-diligence address check","prompt":"I need to verify if this blockchain address 0x9F8e...3D2A has any funds before I proceed — can you look up its balance?"},{"title":"Automated treasury reconciliation","prompt":"Fetch the current balance for our treasury address 0xDeFi...CAFE so I can reconcile it against our internal records."}],"resultDescription":"Returns the on-chain balance of the queried cryptocurrency address, including token amounts and potentially chain-specific breakdowns. Response is a JSON object with balance data for the address across the supported network(s).","failureModes":["Invalid or malformed address returns an error response","Unsupported chain or token type may return empty or null balance","Network congestion or RPC node issues may cause timeouts","Missing required 'query' field results in a 400-style validation error","Address with no transaction history may return zero balance rather than an error"],"whenToPreferThis":"Use this endpoint when you need a quick, pay-per-call balance lookup for a specific blockchain address without setting up your own RPC node infrastructure. It is well-suited for agents needing multi-chain coverage in a single API call, especially when cost-per-query billing via USDC x402 is preferred over a monthly subscription model.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:54:13.613Z","isFirstParty":false}