How can I view 0x9990…1bea's crypto portfolio?

You can view the full portfolio of 0x9990…1bea (0x99902368387ae8da8c9c7840af140a3bf1c31bea) on Zerion at https://app.zerion.io/0x99902368387ae8da8c9c7840af140a3bf1c31bea/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.