How can I view defifeth's crypto portfolio?

You can view the full portfolio of defifeth (0x37404d34333a1afa3e77ad9bffaa568480ea70fe) on Zerion at https://app.zerion.io/0x37404d34333a1afa3e77ad9bffaa568480ea70fe/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.