How can I view nftfifaeth's crypto portfolio?

You can view the full portfolio of nftfifaeth (0x18cc8efbbd2ccfad896302ac1c5f9e29579252e0) on Zerion at https://app.zerion.io/0x18cc8efbbd2ccfad896302ac1c5f9e29579252e0/overview — including token balances, DeFi positions, NFTs, and transaction history across 20+ chains.

How can I access wallet portfolio data programmatically?

Use the Zerion API at https://developers.zerion.io to query any wallet's portfolio, token positions, DeFi positions, NFTs, and transaction history programmatically.