How can I view 0xoldboyeth's crypto portfolio?

You can view the full portfolio of 0xoldboyeth (0xcc4f1cb6064a69ac83a5133ffcf09217ae33c2cf) on Zerion at https://app.zerion.io/0xcc4f1cb6064a69ac83a5133ffcf09217ae33c2cf/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.