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Vextorium EVM Address Inspector
x402
Vextorium EVM Address Inspector is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-11).
Inspects an EVM address to determine if it is a wallet (EOA), EIP-7702 delegated wallet, or contract, including bytecode size, token standard support, proxy details, nonce, and native balance.
Price / call$0.004
Success—
StatusUnknown
How this service works
Address inspector for EVM chains: wallet (EOA), EIP-7702 delegated wallet or contract; bytecode size, ERC-20/721/1155 support, proxy implementation and beacon, nonce and native balance.
Output
Returns a JSON object containing the address type (EOA, contract, or EIP-7702 delegated wallet), the network and block explorer URL, list of supported token standards (ERC-20, ERC-721, ERC-1155), bytecode size in bytes, native token balance, number of sent transactions (nonce), and proxy implementation or beacon address if applicable.
Example use cases
Classify unknown DeFi contract
“I found this address 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Ethereum — can you tell me if it's a smart contract, what token standards it implements like ERC-20 or ERC-721, and whether it's a proxy pointing to some other implementation?”
Verify wallet before sending funds
“Before I send any funds, can you check if 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Ethereum is a regular wallet or a contract, and tell me its current ETH balance and how many transactions it's sent?”
Detect EIP-7702 delegated wallet
“I want to know if the address 0x1234567890abcdef1234567890abcdef12345678 on Base is a standard EOA, an EIP-7702 delegated wallet, or a contract — can you inspect it and give me the full breakdown?”
Technical details
Endpoint
POSThttps://api.vextorium.com/v1/address-inspect?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to determine the nature of an EVM address — whether it is a plain wallet, EIP-7702 delegated wallet, or smart contract — and want rich metadata like token standard support, proxy chain, bytecode size, and on-chain balances in a single call across Base, Ethereum, Arbitrum, Optimism, and Polygon. Prefer this over a generic block explorer lookup when you need structured, machine-readable output suitable for agentic workflows.
Side effects
- Invalid or malformed address format returns an error
- Unsupported network value returns a validation error
- Address not found or zero-activity address may return null fields
- Network RPC timeout may cause delayed or failed response
- Non-proxy contracts return null for implementation_proxy and proxy_beacon fields
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"type": "contrato",
"address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"network": "base",
"explorer": "https://basescan.org/address/0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"standards": [
"ERC-20"
],
"proxy_beacon": null,
"bytecode_size": 1852,
"native_balance": 0.009800646158085844,
"sent_transactions": 1,
"implementation_proxy": "0x2Ce6311ddAE708829bc0784C967b7d77D19FD779"
}
}Tags
x402
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