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Onchain Query API – EVM Wallet Snapshot
x402
Onchain Query API – EVM Wallet Snapshot is a paid API for AI agents from chain.cyberwarex.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-28).
Returns a wallet snapshot for any EVM address on major chains, including native balance, USDC balance, transaction count, contract-or-EOA flag, and USD values — no RPC keys needed.
Price / call$0.003
Success—
StatusUnknown
How this service works
Wallet snapshot on any major EVM chain: native token balance with USD value, USDC balance, transaction count (nonce), and whether the address is a smart contract or a regular EOA. One call, no RPC keys, node infrastructure or block-explorer scraping needed. Use it to check a counterparty wallet, confirm an address is funded before sending a transaction, or profile an unknown address.
Output
A wallet snapshot object containing the native token balance, USDC balance, transaction count, a boolean or flag indicating whether the address is a smart contract or EOA, and USD-denominated values for the balances — all for the specified EVM chain.
Example use cases
Pre-transaction wallet verification
“Before I send funds, check if 0xAbCd...1234 on Base is a regular wallet or a smart contract, and tell me its current ETH and USDC balances.”
DeFi user activity screening
“I need to know how active this wallet 0x742d35Cc6634C0532925a3b844Bc454e4438f44e is on Arbitrum — get me its transaction count and current balances in USD.”
Polygon wallet balance audit
“Pull a snapshot of the wallet 0x1234...abcd on Polygon — I need the native MATIC balance, USDC balance, and what those are worth in USD right now.”
Technical details
Endpoint
GEThttps://chain.cyberwarex.com/wallet?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, all-in-one wallet snapshot across major EVM chains without managing RPC infrastructure or API keys. It is ideal for agents that need native balance, USDC balance, transaction count, and contract detection in a single call at very low cost ($0.003 USDC). Prefer it over raw RPC calls when simplicity and speed matter more than full historical data access.
Side effects
- Invalid or malformed wallet address returns an error
- Unsupported chain value (not one of base, ethereum, arbitrum, optimism, polygon) returns a validation error
- Address not found or zero-activity wallet may return zeroed balances
- Payment failure (x402 protocol) if USDC micropayment is not completed
- Network timeout if the underlying chain RPC is congested
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"usdc": {
"raw": "250400000",
"balance": 250.4
},
"chain": "base",
"native": {
"usd": 4102.77,
"wei": "1284471203441290000",
"symbol": "ETH",
"balance": 1.284471203
},
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"tx_count": 137,
"is_contract": false
}
}Tags
x402
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