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Vaults.fyi Idle Assets Balance Lookup
x402
Vaults.fyi Idle Assets Balance Lookup is a paid API for AI agents from api.vaults.fyi, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).
Returns the balances of idle (uninvested) assets for a specific user wallet address across supported DeFi vaults.
Price / call$0.01
Success—
StatusUnknown
How this service works
Get balances of idle assets for a specific user address.
Output
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.
Example use cases
Identify undeployed capital for yield optimization
“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.”
Portfolio audit before vault deposit
“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?”
Monitor idle balances for a DeFi dashboard
“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.”
Technical details
Endpoint
HEADhttps://api.vaults.fyi/v2/portfolio/idle-assets/:userAddress?utm_source=zero.xyzWhen to prefer
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.
Side effects
- 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
Tags
x402
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