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TripGuard Fare Intelligence – ETH Balance Lookup
x402
TripGuard Fare Intelligence – ETH Balance Lookup is a paid API for AI agents from tripguard-fare-intel.onrender.com, paid per call via x402, $0.12/call, status unknown (last checked 2026-10-11).
Returns the ETH balance (in wei and ether) for a given Ethereum wallet address on the Base network
Price / call$0.12
Success—
StatusUnknown
How this service works
Real-time airfare intelligence for AI travel-booking agents: flight price-drop prediction, fare-fraud and deal-legitimacy verification, and verified booking links for any route and date. Pay-per-call in USDC on Base. No API key.
Output
A JSON object containing the wallet address queried, its ETH balance expressed in wei (as a string), and its ETH balance expressed in ether (as a decimal string), e.g. {"wei":"0","ether":"0.0","address":"0x9Cc774..."}
Example use cases
Pre-payment wallet funding check
“Before I send a transaction, check whether wallet 0x9Cc774A8eD49d89cBA1A288F4a050B8F7FbA77EE has enough ETH to cover gas — what's the current balance in ether?”
Portfolio ETH balance monitoring
“What's the current ETH balance on my wallet 0xAbC123...456789? I want to know both the raw wei amount and the ether equivalent.”
On-chain audit of counterparty wallet
“I need to verify that the seller's wallet 0x1234567890abcdef1234567890abcdef12345678 actually holds ETH before we proceed — can you look up its balance right now?”
Technical details
Endpoint
POSThttps://tripguard-fare-intel.onrender.com/chain/eth-balance?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, pay-per-call ETH balance lookup for any Ethereum wallet address without setting up your own RPC node or managing API keys. It is best suited for lightweight, single-address spot checks rather than bulk or historical balance queries.
Side effects
- Invalid or malformed Ethereum address returns an error or zero balance
- Network connectivity issues with the Base RPC endpoint may cause timeouts
- Non-checksummed addresses may fail validation
- Payment in USDC not fulfilled triggers a 402 response before any balance data is returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| address | string |
Output
Schema · Response
{
"type": "json",
"example": {
"wei": "0",
"ether": "0.0",
"address": "0x9Cc774A8eD49d89cBA1A288F4a050B8F7FbA77EE"
}
}Tags
x402
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