> ## Documentation Index
> Fetch the complete documentation index at: https://voltaire.tevm.sh/llms.txt
> Use this file to discover all available pages before exploring further.

# parseErc1167

> Extract implementation address from ERC-1167 bytecode

## `parseErc1167(bytecode: Uint8Array): Uint8Array | null`

Extracts the implementation address from ERC-1167 minimal proxy bytecode.

**Parameters:**

* `bytecode: Uint8Array` - Proxy bytecode (45 or 55 bytes)

**Returns:** `Uint8Array | null` - 20-byte implementation address or null if invalid

**Example:**

```typescript theme={null}
import { parseErc1167 } from '@tevm/voltaire/Proxy';
import { Address } from '@tevm/voltaire/Address';

// Get deployed code
const code = await eth_getCode('0xCloneAddress...');
const codeBytes = Buffer.from(code.slice(2), 'hex');

// Extract implementation
const implementation = parseErc1167(codeBytes);

if (implementation) {
  console.log('Implementation:', implementation.toHex());
} else {
  console.log('Not a valid ERC-1167 proxy');
}
```

**Defined in:** [src/primitives/Proxy/parseErc1167.js](https://github.com/evmts/voltaire/blob/main/src/primitives/Proxy/parseErc1167.js)

## See Also

* [generateErc1167](/primitives/proxy/generate-erc1167)
* [isErc1167](/primitives/proxy/is-erc1167)
* [ERC-1167 Specification](https://eips.ethereum.org/EIPS/eip-1167)