How to reverse resolve an ENS name

Learn how to reverse resolve the ENS name from an address using the Moralis Resolve API.

Prerequisites

Before getting started, make sure you have the following ready:

  • Node v.14+ or Python
  • NPM/Yarn/PNPM or Pip

Step 1: Setup Moralis

First register your Moralis account and get your Moralis API Key.

Once you have your Moralis API Key, install Moralis SDK in your project.

npm install moralis @moralisweb3/common-evm-utils
yarn add moralis @moralisweb3/common-evm-utils
pnpm add moralis @moralisweb3/common-evm-utils
pip install moralis

Step 2: Reverse Resolve ENS name

In order to reverse resolve the ENS name from an ETH address, Moralis provides you a [resolveAddress](https://docs.moralis.io/reference/resolveaddress) endpoint to do so.

Here you'll need one parameter: address.

Once you've obtained the address, you can copy the following code:

const Moralis = require('moralis').default;
const { EvmChain } = require('@moralisweb3/common-evm-utils');

const runApp = async () => {
  await Moralis.start({
    apiKey: "YOUR_API_KEY",
    // ...and any other configuration
  });
  
  const address = '0xd8da6bf26964af9d7eed9e03e53415d37aa96045';

  const chain = EvmChain.ETHEREUM;

  const response = await Moralis.EvmApi.resolve.resolveAddress({
    address,
  });
  
  console.log(response.toJSON());
}

runApp();
import Moralis from "moralis";
import { EvmChain } from "@moralisweb3/common-evm-utils";

const runApp = async () => {
  await Moralis.start({
    apiKey: "YOUR_API_KEY",
    // ...and any other configuration
  });

  const address = '0xd8da6bf26964af9d7eed9e03e53415d37aa96045';

  const chain = EvmChain.ETHEREUM;

  const response = await Moralis.EvmApi.resolve.resolveAddress({
    address,
  });
  
  console.log(response.toJSON());
}

runApp();
from moralis import evm_api

api_key = "YOUR_API_KEY"

params = {
    "address": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045", 
}

result = evm_api.resolve.resolve_address(
    api_key=api_key,
    params=params,
)

print(result)

To execute the program, run the following command:

node index.js
node index.ts
python index.py

In your terminal, you should see the following response:

{
  "name": "vitalik.eth"
}

Congratulations 🥳 You just reverse resolved the ENS name from a wallet address with just a few lines of code using the Moralis Resolve API!

API Reference

If you want to know more details on the endpoint and optional parameters, check out:

Support

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