{"uid":"cap_DpqVjeX-k8Fq8CF5ffUXN","slug":"phantom-api-token-balances-0412c856","name":"Phantom API — Token Balances","description":"Lightning-fast access to blockchain data, smart contract insights, and Web3 infrastructure across 57+ networks. Pay-per-call via x402.","url":"https://phantom-api-omega.vercel.app/api/stable/token/balances?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"owner":{"type":"string"},"contractAddresses":{"type":"array","items":{"type":"string"}}}},"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_ibp3hlMv3yh00kJ0XiecG","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":"Fetches ERC-20 and other token balances for a given wallet address across 57+ blockchain networks","exampleAgentPrompt":"What are the token balances for wallet 0xABC...123, specifically for USDC (0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48) and USDT (0xdAC17F958D2ee523a2206206994597C13D831ec7)?","exampleUseCases":[{"title":"DeFi portfolio snapshot","prompt":"Show me all the token balances held by wallet 0x742d35Cc6634C0532925a3b8D4C9D5B6e8D15Abc — I want to see every ERC-20 it holds."},{"title":"Multi-wallet treasury audit","prompt":"Check the USDC and DAI balances for our treasury wallet 0xDead...Beef so I can see how much stablecoin we have on hand right now."},{"title":"Smart contract token monitoring","prompt":"For the address 0x1234...5678, pull the current balances for these three token contracts: 0xUNI, 0xLINK, and 0xAAVE — I need to see if any of them dropped below our threshold."}],"resultDescription":"Returns a structured list of token balances for the specified wallet address, including balance amounts for each requested contract address (or all held tokens if no contracts are specified), denominated in the token's native units.","failureModes":["Invalid or malformed wallet address returns an error","Unknown or unsupported contract address may return zero balance or an error","Network congestion may cause delayed or incomplete data","Unsupported blockchain network results in an error response","Payment failure (insufficient USDC) blocks the request via x402 protocol"],"whenToPreferThis":"Choose this endpoint when you need fast, pay-per-call on-chain token balance lookups without committing to a subscription. Ideal for agents that intermittently need wallet token data across many networks (57+) without setting up a dedicated RPC node or indexer. Best when you need specific contract-level token balances for a known wallet address.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T18:56:39.496Z","isFirstParty":false,"canonicalSlug":"phantom-api-token-balances-0412c856"}