# Vextorium EVM Address Inspector

> 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.

## Facts

- Endpoint: POST https://api.vextorium.com/contrato-info-pago?utm_source=zero.xyz
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/vextorium-evm-address-inspector-3a495201
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mMUEYvweocwkwkWoik6FP

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability vextorium-evm-address-inspector-3a495201 -d '<json body>'
```

Example prompt: Can you inspect the address 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Ethereum and tell me if it's a wallet or a smart contract, and if it's a proxy, what the implementation address is?

## When to prefer this

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.

## Known failure modes

- 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

## 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.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "required": [
      "direccion"
     ],
     "properties": {
      "red": {
       "enum": [
        "base",
        "ethereum",
        "arbitrum",
        "optimism",
        "polygon"
       ],
       "type": "string",
       "description": "EVM network (default base)"
      },
      "direccion": {
       "type": "string",
       "description": "Address to inspect"
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "red": {
       "type": [
        "string",
        "null"
       ]
      },
      "tipo": {
       "type": [
        "string",
        "null"
       ]
      },
      "direccion": {
       "type": [
        "string",
        "null"
       ]
      },
      "estandares": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": [
         "string",
         "null"
        ]
       }
      },
      "explorador": {
       "type": [
        "string",
        "null"
       ]
      },
      "proxy_beacon": {
       "type": [
        "string",
        "number",
        "boolean",
        "object",
        "array",
        "null"
       ]
      },
      "saldo_nativo": {
       "type": [
        "number",
        "null"
       ]
      },
      "tamano_bytecode": {
       "type": [
        "number",
        "null"
       ]
      },
      "proxy_implementacion": {
       "type": [
        "string",
        "null"
       ]
      },
      "transacciones_enviadas": {
       "type": [
        "number",
        "null"
       ]
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/vextorium-evm-address-inspector-3a495201/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.vextorium.com](https://www.zero.xyz/host/api.vextorium.com/llms.txt)