# apiacre.com Ethereum/EVM Address Inspector

> apiacre.com Ethereum/EVM Address Inspector is a paid API for AI agents from apiacre.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).

Validates, normalizes, and checksums an Ethereum or EVM-compatible wallet address, and detects whether it is the zero address.

## Facts

- Endpoint: POST https://apiacre.com/v1/crypto/address-inspect
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/apiacre-com-ethereum-evm-address-inspector-3a789b4a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_84HPvT1FVJeMXNpXnBWpv

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 apiacre-com-ethereum-evm-address-inspector-3a789b4a -d '<json body>'
```

Example prompt: Can you validate this Ethereum address for me — '0xde0b295669a9fd93d5f28d9ec85e40f4cb697bae' — check if it's properly formatted, give me the EIP-55 checksummed version, and tell me if it's the zero address?

## When to prefer this

Choose this endpoint when you need to deterministically validate, normalize, or checksum a single Ethereum or EVM-compatible wallet address before using it in a transaction, smart contract call, or database record. It is specifically valuable for detecting the zero address (a common footgun), enforcing EIP-55 checksum correctness, and sanitizing user-supplied address strings. Prefer it over generic string validators or client-side libraries when you need a server-side, auditable validation step in an agent workflow.

## Known failure modes

- Input string is not a valid hex address — returns validation failure with error details
- Address length is incorrect (not 40 hex chars after 0x prefix) — returns format error
- Non-hex characters in address string — returns parse error
- Missing or malformed request body — returns 400-level error

## How this service works

Validate and normalize an Ethereum or EVM wallet address, distinguish valid, absent, or invalid ERC-55 checksum casing, and identify the zero address without a network request.

## Output

Returns a structured result indicating whether the input is a valid Ethereum/EVM address, the EIP-55 checksummed version of the address, whether the original checksum was correct, and a flag indicating whether the address is the zero address (0x000...000).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "address": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "bytes": 20,
   "valid": true,
   "isZero": true,
   "reason": null,
   "source": "https://eips.ethereum.org/EIPS/eip-55",
   "address": "0x0000000000000000000000000000000000000000",
   "warnings": [
    "Zero address detected; do not assume it is an owned or recoverable destination."
   ],
   "inputCase": "numeric",
   "verification": {
    "standard": "ERC-55",
    "balanceChecked": false,
    "chainIndependent": true,
    "ownershipChecked": false,
    "networkRequestsMade": false
   },
   "checksumStatus": "valid",
   "checksumAddress": "0x0000000000000000000000000000000000000000",
   "inputIsChecksum": true,
   "normalizedAddress": "0x0000000000000000000000000000000000000000"
  },
  "meta": {
   "cached": false,
   "sources": [],
   "warnings": [],
   "duration_ms": 42,
   "next_actions": [
    {
     "path": "/v1/crypto/base-account-status",
     "title": "Base account status",
     "method": "POST",
     "reason": "Read one-block Base ETH and native USDC balances, nonce, and contract-code ev...",
     "service": "crypto.base-account-status"
    }
   ]
  },
  "service": "crypto.address-inspect",
  "version": "1",
  "request_id": "018f1f54-7f38-7ba2-8dc3-5f90272d9f1a"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/apiacre-com-ethereum-evm-address-inspector-3a789b4a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from apiacre.com](https://www.zero.xyz/host/apiacre.com/llms.txt)