How can I view 0x4b8c6e03's crypto portfolio?

You can view the full portfolio of 0x4b8c6e03 (0x4b8c45e82e9ed5f7213a4d0fa4a87ea7f1c76e03) on Zerion at https://app.zerion.io/0x4b8c45e82e9ed5f7213a4d0fa4a87ea7f1c76e03/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.