How can I view 0xaa498403's crypto portfolio?

You can view the full portfolio of 0xaa498403 (0xaa49450eab38ef259c8df6cda24d6ec67b9f8403) on Zerion at https://app.zerion.io/0xaa49450eab38ef259c8df6cda24d6ec67b9f8403/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.