{"uid":"cap_0xjLrI7EBB_9yffzIm3r-","slug":"vaults-fyi-idle-assets-balance-lookup-aeb3e6c8","name":"Vaults.fyi Idle Assets Balance Lookup","description":"Get balances of idle assets for a specific user address.","url":"https://api.vaults.fyi/v2/portfolio/idle-assets/:userAddress?utm_source=zero.xyz","method":"HEAD","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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_Q4RSpFJhw7yxcS-qoJKSc","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the balances of idle (uninvested) assets for a specific user wallet address across supported DeFi vaults.","exampleAgentPrompt":"Can you check what idle assets I have sitting uninvested for my wallet address 0x1234abcd...? I want to see which tokens aren't currently earning yield in any vault.","exampleUseCases":[{"title":"Identify undeployed capital for yield optimization","prompt":"Check my wallet 0xAbCd1234...5678 on vaults.fyi and tell me which assets are sitting idle — I want to know what I could be putting to work in a vault to earn yield."},{"title":"Portfolio audit before vault deposit","prompt":"Before I decide where to invest, can you pull up all the idle assets for address 0x9876fedc...1234 so I can see exactly what's available to deploy?"},{"title":"Monitor idle balances for a DeFi dashboard","prompt":"Fetch the current idle asset balances for wallet 0xDead...Beef — I need to track how much of this user's holdings are uninvested versus actively earning in vaults."}],"resultDescription":"A breakdown of the user's idle (uninvested) asset balances for the given wallet address, including token types and amounts that are currently not deposited in any yield-generating vault.","failureModes":["Invalid or malformed wallet address returns an error","Unsupported blockchain address format","Address with no activity or zero balances may return empty results","Rate limiting or payment failure if x402 payment header is missing or insufficient","Network timeouts for addresses with large transaction histories"],"whenToPreferThis":"Use this endpoint when you need to identify uninvested or idle assets for a specific wallet address — particularly useful before recommending vault deposits or performing portfolio yield-gap analysis. Prefer this over general portfolio endpoints when the specific goal is to surface undeployed capital rather than active vault positions or returns.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T12:30:29.355Z","isFirstParty":false,"canonicalSlug":"vaults-fyi-idle-assets-balance-lookup-aeb3e6c8"}