I’m working on an NFT marketplace solution and need to build an API that can fetch and return NFT data, like metadata, ownership, and transaction history. Ideally, it should work across ERC-721 and ERC-1155 standards.

Here’s what I’m trying to figure out:

What’s the best architecture for building an NFT data API? Should I index blockchain data using The Graph or use direct Web3 calls?

How do most NFT marketplace builders structure their API for speed and scalability?

I’m also considering adding caching layers and off-chain storage for faster retrieval, any suggestions?

If anyone here has created a custom NFT marketplace or worked with an NFT marketplace creator platform, I’d love to hear your approach, especially around performance, rate limits, and token standards.

Appreciate your insights!

• Smart Contract Development: Proficiency in Solidity (Ethereum), Rust (Solana), or Move (Aptos/Sui) is essential. Ensure the company performs unit testing, uses secure patterns, and conducts audits (internal or via third-party).

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