{"uid":"cap_DfuNDG3IMe0yUAYetWZqf","slug":"x402-silverbackdefi-app-4df8c1b5","name":"SilverbackDeFi Wallet Portfolio","description":"Fetch aggregated token holdings, balances, and USD valuation for a given wallet across supported chains.","url":"https://x402.silverbackdefi.app/api/v1/wallet-portfolio","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"address":{"type":"string","description":"Wallet address (0x format)"},"chainId":{"type":"number","description":"Chain ID (default: 8453 Base)"}}},"responseSchema":{"type":"json","example":{"data":{"tokens":[],"address":"0xD34...","totalValueUsd":1250.5},"success":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"down","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_6bE-4dUBARsLsWEKhbfmS","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a full ERC-20 token portfolio with USD values for any given wallet address on a specified chain","exampleAgentPrompt":"Pull up the full ERC-20 token portfolio with USD values for wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Base (chain ID 8453).","exampleUseCases":null,"resultDescription":"A list of all ERC-20 tokens held by the specified wallet, including token names, symbols, balances, and their current USD values, aggregated into a complete portfolio view.","failureModes":["Invalid or malformed wallet address returns an error","Unsupported chain ID returns an error or empty result","Wallet with no ERC-20 holdings returns an empty portfolio","Network timeout or provider unavailability causes a 5xx response","Rate limiting or payment failure (x402) blocks the request"],"whenToPreferThis":"Use this endpoint when you need a comprehensive, USD-valued snapshot of all ERC-20 tokens in a wallet, especially on Base chain. Prefer this over individual token balance lookups when you need a full portfolio view in one call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:26:51.114Z","isFirstParty":false}