# Grokzilla Address Validator

> Grokzilla Address Validator is a paid API for AI agents from grokzilla.shop, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-29).

Validates EVM, Solana, or Bitcoin addresses locally (EIP-55 checksum, base58, bech32) with optional on-chain contract/EOA detection on Base.

## Facts

- Endpoint: POST https://grokzilla.shop/api/skills/address-validate?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/grokzilla-address-validator-a443166f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Sfg03A4sdy064jJxV7sKt

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 grokzilla-address-validator-a443166f -d '<json body>'
```

Example prompt: Can you check whether '0x742d35Cc6634C0532925a3b844Bc454e4438f44e' is a valid Ethereum address, and tell me if it's a smart contract or a regular wallet on Base?

## When to prefer this

Choose this endpoint when you need fast, low-cost address validation without setting up your own RPC node or blockchain library. It handles multi-chain auto-detection (EVM, Solana, Bitcoin) in a single call, enforces EIP-55 checksums, and optionally enriches EVM addresses with on-chain EOA/contract classification via Base — all for $0.001 per call with no API key required.

## Known failure modes

- Invalid or malformed address returns valid=false with format error details
- Unsupported address format for the specified chain returns a validation error
- check_code=true requires EVM chain; using it with Solana or Bitcoin returns an error
- Address string exceeds maxLength of 128 characters returns schema validation error
- Network unavailable when check_code=true (eth_getCode on Base) may cause timeout or partial result
- Duplicate request_id with different body may return cached result rather than recomputing

## How this service works

Validate an EVM, Solana, or Bitcoin address locally (EIP-55 checksum, base58, bech32). Optional eth_getCode on Base to label eoa vs contract. No RPC required by default.

## Output

Returns whether the address is valid, the detected or specified chain, the canonical/checksummed form of the address, the address format used (e.g. EIP-55, base58, bech32), and optionally whether it is an EOA or contract (when check_code is true and chain is EVM).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "chain": {
   "enum": [
    "evm",
    "solana",
    "bitcoin",
    "auto"
   ],
   "type": "string",
   "default": "auto"
  },
  "address": {
   "type": "string",
   "maxLength": 128,
   "minLength": 1,
   "description": "Address to validate"
  },
  "check_code": {
   "type": "boolean",
   "default": false,
   "description": "When chain is evm, call eth_getCode on Base to set type eoa|contract"
  },
  "request_id": {
   "type": "string",
   "pattern": "^[A-Za-z0-9._:-]+$",
   "maxLength": 64,
   "minLength": 1,
   "description": "Optional idempotency key. Echoed back; a credit-pack redemption with the same request_id and body is charged once."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/grokzilla-address-validator-a443166f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from grokzilla.shop](https://www.zero.xyz/host/grokzilla.shop/llms.txt)