How can I view 0xa279cdc0's crypto portfolio?

You can view the full portfolio of 0xa279cdc0 (0xa279a9a45ede21834aecd6dedaebcdd6593ccdc0) on Zerion at https://app.zerion.io/0xa279a9a45ede21834aecd6dedaebcdd6593ccdc0/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.