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Introduction

In this tutorial, you’ll learn how to retrieve ownership data for NFT collections using the Moralis API. This includes getting all unique owners of a collection, finding who owns a specific token, and analyzing ownership distribution. This is essential for building collection analytics, whale tracking, or ownership verification tools. We’ll use the following Moralis API endpoint:
  • Get NFT Owners - Fetch ownership data for NFT collections and individual tokens

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Prerequisites

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Step 1: Set Up Your Project

Create a new directory for your project and initialize it: 
mkdir get-nft-owners && cd get-nft-owners
npm init -y

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Step 2: Create the Script

Create a file called index.js and add the following code: 
// index.js
const API_KEY = 'YOUR_API_KEY';
const NFT_ADDRESS = '0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D'; // BAYC

async function getCollectionOwners() {
  const response = await fetch(
    `https://deep-index.moralis.io/api/v2.2/nft/${NFT_ADDRESS}/owners?chain=eth`,
    {
      headers: {
        'X-API-Key': API_KEY,
      },
    }
  );

  const data = await response.json();
  console.log(JSON.stringify(data, null, 2));
}

getCollectionOwners();
Replace YOUR_API_KEY with your actual Moralis API key.

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Step 3: Run the Script

Execute the script to fetch the owners: 
node index.js

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Example Response

{
  "status": "SYNCED",
  "page": 1,
  "page_size": 100,
  "cursor": "abc123...",
  "result": [
    {
      "token_address": "0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d",
      "token_id": "1234",
      "amount": "1",
      "owner_of": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
      "token_hash": "...",
      "block_number_minted": "12346789",
      "contract_type": "ERC721",
      "name": "Bored Ape Yacht Club",
      "symbol": "BAYC",
      "last_token_uri_sync": "2024-01-15T10:30:00.000Z",
      "last_metadata_sync": "2024-01-15T10:30:00.000Z"
    }
  ]
}

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Understanding the Response

FieldDescription
token_idThe unique token ID
owner_ofCurrent owner’s wallet address
amountQuantity owned (1 for ERC721)
block_number_mintedBlock when the NFT was minted
contract_typeToken standard (ERC721 or ERC1155)

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Next Steps