How can I view ethto5000eth's crypto portfolio?

You can view the full portfolio of ethto5000eth (0xd9a65720ca15ff6adc30e431a7a2c4c364a397e8) on Zerion at https://app.zerion.io/0xd9a65720ca15ff6adc30e431a7a2c4c364a397e8/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.