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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 2026-10-01).
Inspects any EVM address to determine if it is a wallet (EOA), EIP-7702 delegated wallet, or smart contract, returning 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 with: the network, the address, its type (wallet/EOA, EIP-7702 delegated wallet, or contract), bytecode size in bytes, an array of supported token standards (ERC-20, ERC-721, ERC-1155), proxy implementation address if applicable, proxy beacon address, native token balance, nonce/transaction count, and a block explorer URL for the address.
Example use cases
Identify contract type before DeFi interaction
“Before I interact with this contract at 0x794a61358D6845594F94dc1DB02A252b5b4814aD on Arbitrum, can you check whether it's a proxy and what implementation it points to?”
Verify NFT standard support on Base
“Check if the address 0xd4307e0acd12cf46fd6cf93bc264f5d5d1598792 on Base is a contract and whether it supports ERC-721 or ERC-1155.”
Check if address is wallet or contract on Polygon
“Is 0x1234567890abcdef1234567890abcdef12345678 on Polygon a regular wallet or a deployed smart contract? Also tell me its native MATIC balance and how many transactions it has sent.”
Technical details
Endpoint
POSThttps://api.vextorium.com/contrato-info-pago?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, single-call profile of any EVM address — covering its type classification, proxy architecture, token standard support, balance, and nonce — across Base, Ethereum, Arbitrum, Optimism, and Polygon. It is especially useful when you need to distinguish EOAs from contracts, detect EIP-7702 delegated wallets, or resolve proxy implementation chains without manually calling multiple on-chain methods.
Side effects
- Invalid address format returns an error or null fields
- Unsupported network value causes validation failure
- Address not found on specified network may return empty or zero values
- Rate limiting or payment failure returns a payment-required error
- Network RPC timeout may cause delayed or failed response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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