{"uid":"cap_zfF1Vhu47Et-CttCHefCP","slug":"phantom-api-token-balances-degen-8a12ad11","name":"Phantom API — Token Balances (Degen)","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/degen/token/balances","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_OGH3rHaC5ybHpq0W6j89o","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 on-chain token balances for a given wallet address, optionally filtered to specific ERC-20/token contract addresses, across 57+ blockchain networks.","exampleAgentPrompt":"What are the token balances for wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045? Also filter it to just show balances for these two tokens: 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 and 0xdAC17F958D2ee523a2206206994597C13D831ec7.","exampleUseCases":[{"title":"DeFi portfolio snapshot for a wallet","prompt":"Can you pull the full token balance breakdown for wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 so I can see everything they're holding on-chain?"},{"title":"Check if whale holds specific tokens","prompt":"I want to know if this whale wallet 0xBE0eB53F46cd790Cd13851d5EFf43D12404d33E8 holds any USDC (0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48) or USDT (0xdAC17F958D2ee523a2206206994597C13D831ec7) — can you check their on-chain balances?"},{"title":"Verify token eligibility for airdrop","prompt":"Before I run the airdrop, check whether wallet 0x742d35Cc6634C0532925a3b844Bc454e4438f44e actually holds our governance token at contract 0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984."}],"resultDescription":"Returns on-chain token balances for the specified wallet address. When contract addresses are provided, results are filtered to those specific tokens. Response includes token amounts, contract metadata (symbol, decimals), and human-readable balance values across supported blockchain networks.","failureModes":["Invalid or malformed wallet address returns an error or empty result","Unsupported network or token contract returns no data","Rate limiting or payment failure (x402) prevents the call from completing","Contract address not found on-chain returns zero or null balance","Network congestion may cause delayed or stale data"],"whenToPreferThis":"Prefer this endpoint when you need fast, pay-per-call on-chain token balance lookups without a subscription commitment, especially across a broad range of EVM-compatible networks. It is ideal for agents doing one-off portfolio checks, airdrop eligibility verification, or whale wallet monitoring. Choose this over free RPC calls when you need reliability, breadth across 57+ networks, and structured output rather than raw RPC responses.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:54:57.419Z","isFirstParty":false}