How can I view 0x4afb66b3's crypto portfolio?

You can view the full portfolio of 0x4afb66b3 (0x4afbca75c8c6374c1419fbb0db0b3a7e14a166b3) on Zerion at https://app.zerion.io/0x4afbca75c8c6374c1419fbb0db0b3a7e14a166b3/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.