How to reverse resolve an ENS name

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Step 1: Setup Moralis

Read the article Setting Up Moralis: Getting Started and make sure to finish all the steps. Only after that you can go ahead to complete this guide.

Step 2: Reverse Resolve ENS name

In order to reverse resolve the ENS name from an ETH address, Moralis provides you a resolveAddress endpoint to do so.

Here you'll need one parameter: address.

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

index.js (JavaScript)

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 = "0x26fcbd3afebbe28d0a8684f790c48368d21665b5";

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

  console.log(response.toJSON());
};

runApp();

index.ts (TypeScript)

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 = "0x26fcbd3afebbe28d0a8684f790c48368d21665b5";

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

  console.log(response.toJSON());
};

runApp();

index.py (Python)

from moralis import evm_api

api_key = "YOUR_API_KEY"

params = {
  "address": "0x26fcbd3afebbe28d0a8684f790c48368d21665b5",
}

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

print(result)

Step 3: Run the script

To run the script, enter the following command:

Shell (JavaScript)

node index.js

Shell (TypeScript)

ts-node index.ts

Shell (Python)

python index.py

In your terminal, you should see the following JSON 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!

Youtube Video

API Reference

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

• resolveAddress

Support

If you face any trouble following the tutorial, feel free to reach out to our community engineers in our Discord or Forum to get 24/7 developer support.