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EVM Wallet Native Balance Lookup
x402
EVM Wallet Native Balance Lookup is a paid API for AI agents from pyfile-agent.taile3ff35.ts.net:10000, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).
Returns the native token balance of an EVM-compatible wallet address on a specified chain (e.g. Base, Ethereum)
Price / call$0.003
Success—
StatusUnknown
How this service works
Native balance of an EVM wallet. ?address=0x...&chain=base
Output
Returns the native token balance (e.g. ETH, MATIC) of the queried wallet address on the specified EVM chain, expressed as a numeric value (likely in wei or ether-denominated units depending on implementation).
Example use cases
Pre-transaction gas check
“Before I send that on-chain transaction, check whether the wallet 0x4838B106FCe9647Bdf1E7877BF73cE8B0BAD5f97 has enough native ETH on Base to cover gas fees.”
Portfolio native balance snapshot
“I want to know the native token balance of my wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Ethereum mainnet — just the native coin, not ERC-20s.”
Counterparty wallet verification
“Someone says they have funds to pay me — can you verify the native balance on Base for wallet address 0x1234567890abcdef1234567890abcdef12345678?”
Technical details
Endpoint
GEThttps://pyfile-agent.taile3ff35.ts.net:10000/data/wallet/balanceWhen to prefer
Use this endpoint when you need a quick, low-cost read of an EVM wallet's native token balance (ETH on Ethereum or Base, MATIC on Polygon, etc.) on a specific chain. Prefer this over general blockchain explorers when you need a programmatic, agent-callable API rather than a UI lookup. Best suited for pre-flight fund checks, portfolio snapshots, or counterparty verification in agentic workflows.
Side effects
- Invalid or malformed wallet address returns an error or empty result
- Unsupported chain name causes a lookup failure
- Network or RPC node timeout leads to a failed response
- Missing required query parameters (address or chain) causes a 400-style error
- Address with zero balance may return 0 rather than an error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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