How can I view ethereumpoweth's crypto portfolio?

You can view the full portfolio of ethereumpoweth (0x5523b536390cab22029250ce3e54d6a4b833d856) on Zerion at https://app.zerion.io/0x5523b536390cab22029250ce3e54d6a4b833d856/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.