How can I view ethtotheweth's crypto portfolio?

You can view the full portfolio of ethtotheweth (0xf457c84cf8ff995d0fcf3a6e03d37afdb0068ef1) on Zerion at https://app.zerion.io/0xf457c84cf8ff995d0fcf3a6e03d37afdb0068ef1/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.