npm install alchemy-sdk

yarn add alchemy-sdk

// Imports the Alchemy SDK
const { Alchemy, Network } = require("alchemy-sdk");

// Configures the Alchemy SDK
const config = {
    apiKey: "alchemy-replit", // Replace with your API key
    network: Network.ETH_MAINNET, // Replace with your network
};

// Creates an Alchemy object instance with the config to use for making requests
const alchemy = new Alchemy(config);

const main = async () => {
    // define the owner address whose NFTs you want to fetch
    const owner = "0xe5cb067e90d5cd1f8052b83562ae670ba4a211a8";

    // create an async generator function that uses the getNftsForOwnerIterator method
    async function getNftsForOwner() {
        try {
            let nfts = [];
            // Get the async iterable for the owner's NFTs.
            const nftsIterable = alchemy.nft.getNftsForOwnerIterator(owner);

            // Iterate over the NFTs and add them to the nfts array.
            for await (const nft of nftsIterable) {
                nfts.push(nft);
            }

            // Log the NFTs.
            console.log(nfts);
        } catch (error) {
            console.log(error);
        }
    }

    getNftsForOwner();
};

main();

[
  {
    contract: {
      address: '0x1f02bf9dde7c79137a08b2dd4fc964bfd2499734',
      name: 'Elephants',
      symbol: 'ELENFT',
      totalSupply: '7778',
      tokenType: 'ERC721',
      openSea: [Object],
      contractDeployer: '0xe5cb067e90d5cd1f8052b83562ae670ba4a211a8',
      deployedBlockNumber: 15140845
    },
    tokenId: '3990',
    tokenType: 'ERC721',
    title: '3L3PHANTS #3990',
    description: '3L3Phants NFT is a collection of 7,777 Elephants stampeding on the Ethereum blockchain. Saving 3L3Phants & Wildlife one NFT at a time',
    timeLastUpdated: '2023-02-28T17:51:29.181Z',
    metadataError: undefined,
    rawMetadata: {
      name: '3L3PHANTS #3990',
      description: '3L3Phants NFT is a collection of 7,777 Elephants stampeding on the Ethereum blockchain. Saving 3L3Phants & Wildlife one NFT at a time',
      image: 'ipfs://QmaL3UbrR8T1tz7j8SuYmQxkQJoPXYZeU49YC5DCHphKDg',
      attributes: [Array]
    },
    tokenUri: {
      gateway: 'https://alchemy.mypinata.cloud/ipfs/QmcpMnvcmUvn3EsQ6QmV1J7QwouBKimrhbHpEV5Db9gFgy/3990',
      raw: 'ipfs://QmcpMnvcmUvn3EsQ6QmV1J7QwouBKimrhbHpEV5Db9gFgy/3990'
    },
    media: [ [Object] ],
    spamInfo: undefined,
    balance: 1
  },
  {
    contract: {
      address: '0xd4307e0acd12cf46fd6cf93bc264f5d5d1598792',
      name: 'Base, Introduced',
      symbol: 'BASEINTRODUCED',
      totalSupply: '373715',
      tokenType: 'ERC721',
      openSea: [Object],
      contractDeployer: '0x2ea881cecb8b79686a2971c9926e1f92b906b63c',
      deployedBlockNumber: 16691530
    },
    tokenId: '59725',
    tokenType: 'ERC721',
    title: 'Base, Introduced 59725',
    description: 'Meet Base, an Ethereum L2 that offers a secure, low-cost, developer-friendly way for anyone, anywhere, to build decentralized apps.\n' +
      '\n' +
      'For the next 5 days, we’ll be evolving the artwork to tell the story of the builders who will help us bring 1B+ people onchain. Check your NFT for the latest evolution every day at 12p ET until 3/6.\n' +
      '\n' +
      'Today, we’re telling the story of collaboration. Base is made possible by all of us working together to build an open and decentralized future.\n' +
      '\n' +
      'Mint ‘Base, Introduced’ to celebrate the testnet launch and join the broader Base community. We’re excited to build Base together with you.',
    timeLastUpdated: '2023-02-28T17:51:19.977Z',
    metadataError: undefined,
    rawMetadata: {
      name: 'Base, Introduced 59725',
      description: 'Meet Base, an Ethereum L2 that offers a secure, low-cost, developer-friendly way for anyone, anywhere, to build decentralized apps.\n' +
        '\n' +
        'For the next 5 days, we’ll be evolving the artwork to tell the story of the builders who will help us bring 1B+ people onchain. Check your NFT for the latest evolution every day at 12p ET until 3/6.\n' +
        '\n' +
        'Today, we’re telling the story of collaboration. Base is made possible by all of us working together to build an open and decentralized future.\n' +
        '\n' +
        'Mint ‘Base, Introduced’ to celebrate the testnet launch and join the broader Base community. We’re excited to build Base together with you.',
      image: 'ipfs://bafybeiabs6thetplku4hykmcxbzzmqfbkizbflyvwiawbyubam6czl2h7i',
      properties: [Object]
    },
    tokenUri: {
      gateway: '',
      raw: 'data:application/json;base64,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'
    },
    media: [ [Object] ],
    spamInfo: undefined,
    balance: 1
  },
  {
    contract: {
      address: '0xea67b4dd7bacae340bc4e43652044b5cded1963c',
      name: 'Moonkys',
      symbol: 'MOONK',
      totalSupply: '8966',
      tokenType: 'ERC721',
      openSea: [Object],
      contractDeployer: '0x94f65107eb422c67e61588682fcf9d85aac940b8',
      deployedBlockNumber: 14045176
    },
    tokenId: '2378',
    tokenType: 'ERC721',
    title: 'Moonky #2378',
    description: 'A collection of 9000 randomly generated Moonkys, living on ETH Blockchain. All different, All endearing.',
    timeLastUpdated: '2023-02-28T17:51:26.990Z',
    metadataError: undefined,
    rawMetadata: {
      name: 'Moonky #2378',
      description: 'A collection of 9000 randomly generated Moonkys, living on ETH Blockchain. All different, All endearing.',
      image: 'https://ipfs.io/ipfs/QmRmquSbLpiYRd8nCURUmP2fJ9LbaEtG3tJLGGscFp1WAT',
      attributes: [Array],
      external_link: 'https://www.moonkys.art'
    },
    tokenUri: {
      gateway: 'https://api.moonkys.art/meta/2378',
      raw: 'https://api.moonkys.art/meta/2378'
    },
    media: [ [Object] ],
    spamInfo: undefined,
    balance: 1
  }
]