How Can I Show NFTs Minted in Other Contracts in My NFT Marketplace?

[Vihan Richard]

I'm building an NFT marketplace using a PHP NFT Marketplace Script and exploring options with a readymade NFT marketplace solution. I want to display NFTs that were minted through other smart contracts (i.e., not created directly on my platform).
Is it technically feasible to pull and show externally minted NFTs if I know the contract addresses? Are there recommended methods to fetch this data—maybe using web3, The Graph, or another integration?
Also, would this be compatible with most NFT marketplace builder frameworks? Any help or examples would be great!