MegaNames

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Integrate Mega Names

Display .mega names in your app. Resolve names to addresses and addresses to names with a few lines of code.

How It Works

MegaNames is a single contract — no registry/resolver split, no subgraphs. Two read calls cover most use cases:

  • getName(address) → resolve address to name
  • addr(tokenId) → resolve name to address

Contract

Address:0x5B424C6CCba77b32b9625a6fd5A30D409d20d997
Chain:MegaETH Mainnet (4326)
RPC:https://mainnet.megaeth.com/rpc

Display a .mega Name

Show a user's .mega name instead of their raw address. This is the most common integration.

import { createPublicClient, http } from 'viem'

const client = createPublicClient({
  transport: http('https://mainnet.megaeth.com/rpc'),
})

const name = await client.readContract({
  address: '0x5B424C6CCba77b32b9625a6fd5A30D409d20d997',
  abi: [{
    type: 'function', name: 'getName',
    inputs: [{ name: 'addr_', type: 'address' }],
    outputs: [{ type: 'string' }],
    stateMutability: 'view',
  }],
  functionName: 'getName',
  args: ['0x9D152D78b05f31EA6979061d432110c8664cA1a7'],
})

const display = name ? `${name}.mega` : '0x9D15...1a7'

Resolve a Name to Address

Look up the address a .mega name points to — for example, letting users type "bread.mega" instead of pasting an address.

import { keccak256, toBytes, encodePacked } from 'viem'

const MEGA_NODE = keccak256(encodePacked(
  ['bytes32', 'bytes32'],
  ['0x' + '00'.repeat(32), keccak256(toBytes('mega'))]
))

function getTokenId(label: string): bigint {
  return BigInt(keccak256(encodePacked(
    ['bytes32', 'bytes32'],
    [MEGA_NODE, keccak256(toBytes(label.toLowerCase()))]
  )))
}

const address = await client.readContract({
  address: '0x5B424C6CCba77b32b9625a6fd5A30D409d20d997',
  abi: [{
    type: 'function', name: 'addr',
    inputs: [{ name: 'tokenId', type: 'uint256' }],
    outputs: [{ type: 'address' }],
    stateMutability: 'view',
  }],
  functionName: 'addr',
  args: [getTokenId('bread')],
})
// Returns 0x0 if name doesn't exist or is expired