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NexusAPI Crypto Address Balance Lookup
x402
NexusAPI Crypto Address Balance Lookup is a paid API for AI agents from nexus-api-peach-nine.vercel.app, paid per call via x402, $0.130773/call, status unknown (last checked 2026-09-13).
Retrieves the cryptocurrency balance for a given blockchain wallet address
Price / call$0.130773
Success—
StatusUnknown
How this service works
Crypto, AI, Social Media, Finance, Weather, Tools & more. Pay per call in USDC on Base. No API keys.
Output
Returns the cryptocurrency balance associated with the provided blockchain wallet address, likely including token amounts and possibly token type or chain information.
Example use cases
Monitor customer wallet holdings for fraud detection
“I need you to regularly check the crypto balances for these customer wallet addresses and alert me if any balance suddenly drops by more than 50% in a day.”
Verify user funds before processing withdrawal requests
“Before we process this withdrawal request, can you check how much USDC this user actually has in their wallet at 0x8ba1f109551bD432803012645Ac136ddd64DBA72?”
Track portfolio allocation across multiple chains
“Help me get a snapshot of all the crypto holdings across these five wallet addresses so I can see our total exposure and rebalance if needed.”
Technical details
Endpoint
POSThttps://nexus-api-peach-nine.vercel.app/api/crypto/address/balanceWhen to prefer
Use this endpoint when you need a quick, pay-per-call balance check for a specific crypto wallet address without managing API keys. Prefer this over self-hosted blockchain node queries when simplicity and low setup overhead matter. Best for agents that occasionally need on-chain balance data without committing to a subscription.
Side effects
- Invalid or malformed wallet address returns an error or empty result
- Address not found on the queried blockchain returns zero or null balance
- Network or RPC node unavailability causes timeout or 503 error
- Rate limiting or payment failure (402) if USDC payment is not properly attached
- Unsupported blockchain or token type may return no data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| query | string | Search query or input parameter |
Output
Schema · Response
{
"type": "object",
"description": "API response data"
}Tags
x402
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